VocalEasel/mma/egs/misc/volumes.mma

// Demo file to show effects of different volume/ratio settings


Print
Print This file generates a few chords and solo notes.
Print Not much in the way of nice music, but the idea
Print is to demo how different volume combinations work.
Print
Print For all of this we are going to use a CHORD pattern
Print simply defined as 4 quarter notes.

Begin Chord 
	// No Volume ... use default of "M"
	Sequence {1 1 90 * 4}  // simple 4 quarters
	Voice JazzGuitar
	Octave 5
	Articulate 80
End

Print 
Print First off, just play a bar of C chord.
Print

 C
BeatAdjust 1

Print Now, apply a crescendo from PP to FF over 4 bars
Print

Cresc pp ff 4

Repeat
Print Volume == $_Volume
 C 
RepeatEnd 4
BeatAdjust 1

Print
Print Now, we add a solo line. This is just a bit of mary's lamb
Print To be way too cute, we include the volume settings as lyric events.
Print Look at the source ... it's all done with macros :) 

Lyric Split=Bar
Vexpand Off
Set Vo  Main $_Volume Solo $_Solo_Volume 
Mset Mary
 F {4a;g;f;g;}    [ Volume Ratio $_VolumeRatio  $Vo ]
 / {4a; ; 2;}     [ $Vo ]
 C7 {4g; ; 2;}    [ $Vo ] 
 F  {4a; c+; 2;}  [ $Vo ]
 BeatAdjust 1
EndMset
Vexpand On

Begin Solo
	Voice Trumpet
	Articulate 90
	Harmony Open
	Octave 5
End


Volume M
Solo Volume Mf
 
$Mary

Print
Print Now, the same but with a different volume ratio ...
Print The ratio of 80 gives the track setting in Solo more beef

AdjustVolume ratio=80

$Mary

Print
Print Opposing Cresc and Decresc with normal ratio restored.

AdjustVolume Ratio=60

Solo Cresc p f 4
Decresc f p 4

$Mary

Print
Print Same with the track ratio increased

AdjustVolume Ratio=80

Solo Cresc p f 4
Decresc f p 4

$Mary

Print
Print Finally, with the track volume set to 40

AdjustVolume Ratio=60

Solo Cresc p f 4
Decresc f p 4

$Mary