mirror of
https://github.com/microtherion/VocalEasel.git
synced 2024-12-22 03:04:00 +00:00
Properly read and write harmony info
This commit is contained in:
Matthias Neeracher
parent
0cc5fb11b4
commit
7d8a579907
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@ -108,39 +108,40 @@ class MusicXMLListener
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@kind = nil # Ignore all tags not recognized here
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@text = ""
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case tag
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when 'score-timewise' then
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when 'score-timewise'
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$stderr.puts "Can't read timewise MusicXML files yet"
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exit 1
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when 'work-title' then
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when 'work-title'
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@kind = 'textProp'
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@key = 'title'
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when 'creator' then
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when 'creator'
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case attrs['type']
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when 'composer' then
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when 'composer'
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@kind = 'textProp'
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@key = 'composer'
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when 'poet' then
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when 'poet'
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@kind = 'textProp'
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@key = 'lyricist'
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end
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when 'miscellaneous-field' then
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when 'miscellaneous-field'
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if attrs['name'] == 'VocalEasel-groove'
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@kind = 'textProp'
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@key = 'groove'
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end
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when 'encoding-date' then
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when 'encoding-date'
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@kind = 'dateProp'
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@key = 'saved'
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when 'software' then
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when 'software'
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@kind = 'textProp'
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@key = 'software'
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when 'part' then
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when 'part'
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@part = attrs['id'] || ""
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@prop = {}
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@props = []
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@measNo = -1
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when 'measure' then
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when 'measure'
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@notes= []
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@note = nil
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@harm = []
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@chord= false
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@at = 0
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@ -157,20 +158,20 @@ class MusicXMLListener
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'melody' => []
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}
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end
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when 'barline' then
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when 'barline'
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@times = nil
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@type = nil
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@number = ""
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when 'repeat' then
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when 'repeat'
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if attrs['direction'] == 'backward' && attrs['times']
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@times = attrs['times'].to_i
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elsif attrs['direction'] == 'forward'
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@times = 0
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end
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when 'ending' then
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when 'ending'
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@type = attrs['type']
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@number = attrs['number']
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when 'sound' then
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when 'sound'
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if attrs['tocoda']
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@meas['tocoda'] = true
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elsif attrs['coda']
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@ -179,47 +180,46 @@ class MusicXMLListener
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if attrs['tempo']
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OUTPUT['tempo'] = attrs['tempo'].to_i
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end
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when 'divisions' then
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when 'divisions'
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@kind = 'prop'
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@key = 'divisions'
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when 'fifths' then
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when 'fifths'
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@kind = 'prop'
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@key = 'key'
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when 'beats' then
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when 'beats'
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@kind = 'prop'
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@key = 'timeNum'
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when 'beat-type' then
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when 'beat-type'
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@kind = 'prop'
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@key = 'timeDenom'
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when 'harmony' then
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when 'harmony'
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@note = { 'pitch' => VL::NoPitch, 'steps' => 0, 'root' => VL::NoPitch,
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'at' => @at }
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when 'degree' then
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when 'degree'
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@degree_value = 0
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@degree_alter = 0
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@degree_type = "alter"
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when 'note' then
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when 'note'
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@note = { 'pitch' => 0, 'durNum' => 0, 'durDenom' => 0 }
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when 'rest' then
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when 'rest'
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@note['pitch'] = VL::NoPitch
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when 'mode', 'step', 'alter', 'octave', 'duration', 'syllabic', 'text',
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'root-step', 'root-alter', 'bass-step', 'bass-alter', 'kind',
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'degree-value', 'degree-alter', 'degree-type'
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then
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@kind = tag
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when 'tie' then
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when 'tie'
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@note['tied'] ||= 0
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case attrs['type']
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when 'start' then
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when 'start'
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@note['tied'] |= VL::TiedWithNext
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when 'stop' then
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when 'stop'
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@note['tied'] |= VL::TiedWithPrev
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end
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when 'lyric' then
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when 'lyric'
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num = (attrs['number'] || "1").to_i-1
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@note['lyrics'] ||= []
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@note['lyrics'][num] = @lyric = {}
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when 'chord' then
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when 'chord'
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@chord = true
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end
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end
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@ -283,44 +283,48 @@ class MusicXMLListener
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#
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if @kind
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case @kind
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when 'textProp' then
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when 'textProp'
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OUTPUT[@key] = @text
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when 'dateProp' then
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when 'dateProp'
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begin
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OUTPUT[@key] = Time.parse(@text)
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rescue
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OUTPUT[@key] = Time.now
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end
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when 'prop' then
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when 'prop'
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@prop[@key] = @text.to_i
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when 'mode' then
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when 'mode'
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@prop['mode'] = @text == 'minor' ? -1 : 1
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when 'step' then
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when 'step'
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@note['pitch'] += PITCH[@text]
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when 'alter', 'root-alter' then
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when 'alter', 'root-alter'
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@note['pitch'] += @text.to_i
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when 'octave' then
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when 'octave'
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@note['pitch'] += (@text.to_i+1)*12
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when 'duration' then
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@note['durNum'] = @text.to_i
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@note['durDenom'] = @prop['divisions']*4
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when 'root-step' then
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when 'duration'
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if @note
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@note['durNum'] = @text.to_i
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@note['durDenom'] = @prop['divisions']*4
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else
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@duration = @text.to_i
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end
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when 'root-step'
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@note['pitch'] = PITCH[@text]
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when 'bass-step' then
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when 'bass-step'
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@note['root'] = PITCH[@text]
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when 'bass-alter' then
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when 'bass-alter'
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@note['root'] += @text.to_i
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when 'kind' then
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when 'kind'
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@note['steps'] = CHORD[@text]
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when 'degree-value' then
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when 'degree-value'
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@degree_value = @text.to_i-1
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when 'degree-alter' then
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when 'degree-alter'
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@degree_alter = @text.to_i
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when 'degree-type' then
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when 'degree-type'
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@degree_type = @text
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when 'syllabic' then
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when 'syllabic'
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@lyric['kind'] = SYLL[@text]
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when 'text' then
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when 'text'
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@lyric['text'] = @text
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end
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@kind = nil
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@ -329,11 +333,11 @@ class MusicXMLListener
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# Structures are distinguished by tag
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#
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case tag
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when 'attributes' then
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when 'attributes'
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if @prop != @props.last
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@props.push(@prop)
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end
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when 'note' then
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when 'note'
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if @chord
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note = @notes.last
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note['pitch'] = [*note['pitch']] << @note['pitch']
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@ -342,13 +346,18 @@ class MusicXMLListener
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@notes.push(@note)
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@at += @note['durNum']
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end
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when 'degree' then
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@note = nil
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when 'forward'
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@at += @duration
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when 'backup'
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@at -= @duration
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when 'degree'
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oldSteps = @note['steps']
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oldValue = @degree_value
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case @degree_type
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when 'subtract' then
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when 'subtract'
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@note['steps'] &= ~DEGREE[@degree_value][0]
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when 'add' then
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when 'add'
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@degree_value = DEGREE[@degree_value][1]
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if @degree_alter < 0
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@degree_value >>= -@degree_alter
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@ -356,7 +365,7 @@ class MusicXMLListener
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@degree_value <<= @degree_alter
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end
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@note['steps'] |= @degree_value
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when 'alter' then
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when 'alter'
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@degree_value = @note['steps'] & DEGREE[@degree_value][0]
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@note['steps'] ^= @degree_value
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if @degree_alter < 0
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@ -366,16 +375,16 @@ class MusicXMLListener
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end
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@note['steps'] |= @degree_value
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end
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# $stderr.puts "#{@degree_type} #{oldValue} #{@degree_alter} (#{oldSteps} -> #{@note['steps']})"
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when 'harmony' then
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when 'harmony'
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@harm.push(@note)
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when 'barline' then
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@note = nil
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when 'barline'
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case @type
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when 'start' then
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when 'start'
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@meas['begin-ending'] = {
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'volta' => makeVolta(@number)
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}
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when 'stop', 'discontinue' then
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when 'stop', 'discontinue'
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@meas['end-ending'] = {
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'volta' => makeVolta(@number),
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'last' => @type == 'discontinue'
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@ -391,7 +400,7 @@ class MusicXMLListener
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end
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end
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end
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when 'measure' then
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when 'measure'
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@meas['properties'] = @props.length-1 unless @props.empty?
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if @part == 'HARM'
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@meas['chords'] = makeChords(@notes)
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@ -416,7 +425,7 @@ class MusicXMLListener
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end
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end
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end
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when 'part' then
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when 'part'
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OUTPUT['properties'] = @props unless @part == 'HARM'
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end
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end
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@ -50,13 +50,9 @@ end
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def _part_list
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part_list = REXML::Element.new('part-list')
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chords = REXML::Element.new('score-part')
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chords.add_attribute('id', 'HARM')
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chords.add_element newTextElement('part-name', 'Chords')
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part_list.add_element(chords)
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melody = REXML::Element.new('score-part')
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melody.add_attribute('id', 'MELO')
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melody.add_element newTextElement('part-name', 'Melody')
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melody.add_element newTextElement('part-name', 'Song')
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part_list.add_element(melody)
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return part_list
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@ -85,33 +81,43 @@ end
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STEPS = 'C DbD EbE F GbG AbA BbB '
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def _pitch(name, pitch, prefix="")
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oct = pitch/12 - 1
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stp = 2*(pitch%12)
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step = STEPS[stp]
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alt = STEPS[stp+1] == ?b
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if alt
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if $USE_FLATS
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alt = -1
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else
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step = step == ?A ? ?G : step-1
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alt = 1
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end
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end
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if prefix.length > 0
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prefix += "-"
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end
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pitch= REXML::Element.new(name)
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pitch.add_element newTextElement(prefix+'step', step.chr)
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if alt
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pitch.add_element newTextElement(prefix+'alter', alt)
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end
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if prefix.length == 0
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pitch.add_element newTextElement('octave', oct)
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end
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return pitch
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end
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def _note(pitch, dur, tied=0)
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note = REXML::Element.new('note')
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if pitch == VL::NoPitch
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note.add_element(REXML::Element.new('rest'))
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else
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oct = pitch/12 - 1
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stp = 2*(pitch%12)
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step = STEPS[stp]
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alt = STEPS[stp+1] == ?b
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if alt
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if $USE_FLATS
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alt = -1
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else
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step = step == ?A ? ?G : step-1
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alt = 1
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end
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end
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if (tied & VL::InChord) != 0
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note.add_element 'chord'
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end
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pitch= REXML::Element.new('pitch')
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pitch.add_element newTextElement('step', step.chr)
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if alt
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pitch.add_element newTextElement('alter', alt)
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end
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pitch.add_element newTextElement('octave', oct)
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note.add_element(pitch)
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note.add_element(_pitch('pitch', pitch))
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end
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note.add_element newTextElement('duration', dur)
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if (tied & VL::TiedWithPrev) != 0
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@ -124,45 +130,152 @@ def _note(pitch, dur, tied=0)
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return note
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end
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def _chords
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chords = REXML::Element.new('part')
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chords.add_attribute('id', 'HARM')
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lastProp = -1
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measNum = 0
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INPUT['measures'].each do |meas|
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measNum += 1
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m = REXML::Element.new('measure')
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m.add_attribute('number', measNum.to_s);
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if meas['properties'] != lastProp
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lastProp = meas['properties']
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m.add_element(_attributes(INPUT['properties'][lastProp]))
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CHORD = {
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#
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# Triads
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#
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'major' => VL::Chord::Maj,
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'minor' => VL::Chord::Min,
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'augmented' => VL::Chord::Aug,
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'diminished' => VL::Chord::Dim,
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#
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# 7ths
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#
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'dominant' => VL::Chord::Dom7,
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'major-seventh' => VL::Chord::Maj7,
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'minor-seventh' => VL::Chord::Min7,
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'diminished-seventh' => VL::Chord::Dim7,
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'augmented-seventh' => VL::Chord::Aug7,
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'half-diminished' => VL::Chord::M7b5,
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'major-minor' => VL::Chord::MMin7,
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#
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# 6ths
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#
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'major-sixth' => VL::Chord::Maj6,
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'minor-sixth' => VL::Chord::Min6,
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#
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# 9ths
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#
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'dominant-ninth' => VL::Chord::Dom9,
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'major-ninth' => VL::Chord::Maj9,
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'minor-ninth' => VL::Chord::Min9,
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#
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# 11ths
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#
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'dominant-11th' => VL::Chord::Dom11,
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'major-11th' => VL::Chord::Maj11,
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'minor-11th' => VL::Chord::Min11,
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#
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# 13ths
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#
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'dominant-13th' => VL::Chord::Dom13,
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'major-13th' => VL::Chord::Maj13,
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'minor-13th' => VL::Chord::Min13,
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#
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# Suspended
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#
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'suspended-second' => VL::Chord::Sus2,
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'suspended-fourth' => VL::Chord::Sus4,
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#
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# Varia
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#
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'other' => VL::Unison,
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'none' => 0
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}
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#
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# This list differs a bit from the list in .reader, as we prefer
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# certain degrees, i.e. #9 rather than b10
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#
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DEGREE = [
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[VL::Unison, VL::Unison],
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[VL::Min2nd+VL::Maj2nd, VL::Maj2nd],
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[VL::Min3rd+VL::Maj3rd, VL::Maj3rd],
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[VL::Fourth, VL::Fourth],
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[VL::Dim5th+VL::Fifth+VL::Aug5th, VL::Fifth],
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[VL::Dim7th, VL::Dim7th],
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[VL::Min7th+VL::Maj7th, VL::Min7th],
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[VL::Octave, VL::Octave],
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[VL::Min9th+VL::Maj9th+VL::Aug9th, VL::Maj9th],
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[0, VL::Dim11th],
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[VL::Dim11th+VL::Eleventh+VL::Aug11th, VL::Eleventh],
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[0, VL::Dim13th],
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[VL::Dim13th+VL::Min13th+VL::Maj13th, VL::Maj13th]
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];
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def _chord(pitch, steps, root)
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#
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# Pick kind. sus takes precedence
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#
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if (steps & (VL::Min3rd|VL::Maj3rd)) == 0 and (steps & (VL::Maj2nd|VL::Fourth))!= 0
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if (steps & VL::Fourth) != 0
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kind = 'suspended-fourth'
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else
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kind = 'suspended-second'
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end
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meas['chords'].each do |chord|
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dur = (chord['durNum'] * $DIVISIONS * 4) / chord['durDenom']
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if chord['pitch'] == VL::NoPitch
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m.add_element _note(VL::NoPitch, dur)
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else
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seenNote = 0
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if chord['root'] != VL::NoPitch
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m.add_element _note(chord['root'], dur)
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seenNote = VL::InChord
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end
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pitch = chord['pitch']
|
||||
steps = chord['steps']
|
||||
(0..25).each do |step|
|
||||
if (steps & (1<<step)) != 0
|
||||
m.add_element _note(pitch+step, dur, seenNote)
|
||||
seenNote = VL::InChord
|
||||
end
|
||||
end
|
||||
else
|
||||
#
|
||||
# It's hard to score alterations properly, so rank purely by correct steps
|
||||
#
|
||||
best = 0
|
||||
kind = 'none'
|
||||
CHORD.each do |k,mask|
|
||||
mask &= steps
|
||||
score = 0
|
||||
while mask > 0
|
||||
score += 1
|
||||
mask &= mask-1
|
||||
end
|
||||
if score > best
|
||||
kind = k
|
||||
best = score
|
||||
end
|
||||
end
|
||||
end
|
||||
harm = REXML::Element.new('harmony')
|
||||
harm.add_element(_pitch('root', pitch, 'root'))
|
||||
harm.add_element newTextElement('kind', kind)
|
||||
if root != VL::NoPitch
|
||||
harm.add_element(_pitch('bass', root, 'bass'))
|
||||
end
|
||||
needSteps = steps & ~CHORD[kind]
|
||||
extraSteps= CHORD[kind] & ~steps
|
||||
if (needSteps+extraSteps) > 0
|
||||
DEGREE.each_index do |deg|
|
||||
mask = DEGREE[deg][0]
|
||||
type = nil
|
||||
need = needSteps & mask
|
||||
extra= extraSteps & mask
|
||||
if need != 0
|
||||
if extra != 0
|
||||
type = 'alter'
|
||||
alter= extra > need ? -1 : 1
|
||||
else
|
||||
type = 'add'
|
||||
step = DEGREE[deg][1]
|
||||
alter= step > need ? -1 : (step < need ? 1 : 0)
|
||||
end
|
||||
elsif extra != 0
|
||||
type = 'subtract'
|
||||
alter= 0
|
||||
end
|
||||
if type
|
||||
degree = REXML::Element.new('degree')
|
||||
degree.add_element newTextElement('degree-value', (deg+1).to_s)
|
||||
degree.add_element newTextElement('degree-alter', alter.to_s)
|
||||
degree.add_element newTextElement('degree-type', type)
|
||||
harm.add_element(degree)
|
||||
|
||||
needSteps &= ~need
|
||||
extraSteps &= ~extra
|
||||
|
||||
break if (needSteps+extraSteps) == 0
|
||||
end
|
||||
end
|
||||
chords.add_element(m)
|
||||
end
|
||||
|
||||
return chords
|
||||
return harm
|
||||
end
|
||||
|
||||
SYLLABLE = %w[single begin end middle]
|
||||
|
|
@ -217,8 +330,33 @@ def _melody
|
|||
barline.add_element 'ending', {'type' => 'start', 'number' => num}
|
||||
m.add_element(barline)
|
||||
end
|
||||
noteAt = 0
|
||||
chordAt= 0
|
||||
chords = meas['chords']
|
||||
chordIx= 0
|
||||
meas['melody'].each do |note|
|
||||
dur = (note['durNum'] * $DIVISIONS * 4) / note['durDenom']
|
||||
tempAt = noteAt
|
||||
while chordIx < chords.length && chordAt < noteAt+dur
|
||||
chord = chords[chordIx]
|
||||
if chord['pitch'] != VL::NoPitch
|
||||
if chordAt > tempAt
|
||||
fw = REXML::Element.new('forward')
|
||||
fw.add_element newTextElement('duration', (chordAt-tempAt).to_s)
|
||||
m.add_element(fw)
|
||||
tempAt = chordAt
|
||||
end
|
||||
m.add_element(_chord(chord['pitch'], chord['steps'], chord['root']))
|
||||
end
|
||||
chordAt += (chord['durNum'] * $DIVISIONS * 4) / chord['durDenom']
|
||||
chordIx += 1
|
||||
end
|
||||
if tempAt > noteAt
|
||||
bk = REXML::Element.new('backup')
|
||||
bk.add_element newTextElement('duration', (tempAt-noteAt).to_s)
|
||||
m.add_element(bk)
|
||||
tempAt = noteAt
|
||||
end
|
||||
n = _note(note['pitch'], dur, note['tied'] || 0)
|
||||
stanza = 1
|
||||
note['lyrics'].each do |syll|
|
||||
|
|
@ -231,6 +369,7 @@ def _melody
|
|||
end
|
||||
stanza += 1
|
||||
end if note['lyrics']
|
||||
noteAt += dur
|
||||
m.add_element(n)
|
||||
end
|
||||
if r = meas['end-repeat']
|
||||
|
|
@ -246,7 +385,6 @@ def _melody
|
|||
barline.add_attribute('location', 'right')
|
||||
barline.add_element newTextElement('bar-style',
|
||||
(repeat[measNum+1] & 1) != 0 ? 'heavy-heavy' : 'light-heavy')
|
||||
barline.add_element 'repeat', {'direction' => 'backward'}
|
||||
volta = ending['volta']
|
||||
num = nil
|
||||
(0..7).each do |i|
|
||||
|
|
@ -260,6 +398,7 @@ def _melody
|
|||
end
|
||||
type = ending['last'] ? "discontinue" : "stop"
|
||||
barline.add_element 'ending', {'type', type, 'number', num}
|
||||
barline.add_element 'repeat', {'direction' => 'backward'}
|
||||
m.add_element(barline)
|
||||
end
|
||||
if meas['tocoda']
|
||||
|
|
@ -277,7 +416,6 @@ def _score
|
|||
score.add_element(_work)
|
||||
score.add_element(_identification)
|
||||
score.add_element(_part_list)
|
||||
score.add_element(_chords)
|
||||
score.add_element(_melody)
|
||||
|
||||
return score
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user