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220 lines
6.2 KiB
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<!--Converted with LaTeX2HTML 2008 (1.71)
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original version by: Nikos Drakos, CBLU, University of Leeds
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* revised and updated by: Marcus Hennecke, Ross Moore, Herb Swan
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* with significant contributions from:
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Jens Lippmann, Marek Rouchal, Martin Wilck and others -->
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<HTML>
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<HEAD>
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<TITLE>Creating Effects</TITLE>
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<META NAME="description" CONTENT="Creating Effects">
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HREF="node29.html">Frequency Asked Questions</A>
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<!--Table of Child-Links-->
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<A NAME="CHILD_LINKS"><STRONG>Subsections</STRONG></A>
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<UL CLASS="ChildLinks">
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<LI><A NAME="tex2html883"
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HREF="node28.html#SECTION002810000000000000000">Overlapping Notes</A>
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<LI><A NAME="tex2html884"
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HREF="node28.html#SECTION002820000000000000000">Jungle Birds</A>
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</UL>
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<!--End of Table of Child-Links-->
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<HR>
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<H1><A NAME="SECTION002800000000000000000"></A>
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<A NAME="sec-effects"></A>
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<BR>
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Creating Effects
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</H1>
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<P>
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It's really quite amazing how easy and effective it is to create
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different patterns, sequences and special effects. As
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<FONT Face="Serif" Color="Navy"><I>MMA</I></FONT> was
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developed lots of silly things were tried ... this chapter is an
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attempt to display and preserve some of them.
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<P>
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The examples don't show any music to apply the patterns or sequences
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to. The manual assumes that if you've read this far you'll know
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that you should have something like:
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<P>
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<Table Hspace="40%" CellSpacing=0 CellPadding=10 BGColor="OldLace" Border=3>
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<tr><td>
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<B>1 C
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<BR>
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2 G
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<BR>
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3 G
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<BR>
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4 C </B>
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</td></tr>
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</Table>
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<P>
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as a simple test piece to apply tests to.
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<P>
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<H1><A NAME="SECTION002810000000000000000">
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Overlapping Notes</A>
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</H1>
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<P>
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As a general rule, you should not create patterns in which notes
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overlap. However, here's an interesting effect which relies on
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ignoring that rule:
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<P>
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<Table Hspace="40%" CellSpacing=0 CellPadding=10 BGColor="OldLace" Border=3>
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<tr><td>
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<B>Begin Scale
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<BR> define S1 1 1+1+1+1 90
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<BR> define S32 S1 * 32
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<BR> Sequence S32
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<BR> ScaleType
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<BR> Direction Both
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<BR> Voice Accordion
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<BR> Octave 5
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<BR>
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End </B>
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</td></tr>
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</Table>
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<P>
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“S1” is defined with a note length of 4 whole notes (1+1+1+1) so that
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when it is multiplied for S32 a pattern of 32 8th notes is created.
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Of course, the notes overlap. Running this up and down a chromatic
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scale is “interesting”. You might want to play with this a bit and
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try changing “S1” to:
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<P>
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<Table Hspace="40%" CellSpacing=0 CellPadding=10 BGColor="OldLace" Border=3>
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<tr><td>
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<B>define S1 1 1 90 </B>
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</td></tr>
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</Table>
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<P>
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to see what the effect is of the notes overlapping.
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<P>
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<H1><A NAME="SECTION002820000000000000000">
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Jungle Birds</A>
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</H1>
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<P>
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Here's another use for S<SMALL>CALE</SMALL>s. Someone (certainly not the
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author) decided that some jungle sounds would be perfect as an
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introduction to “Yellow Bird”.
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<P>
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<Table Hspace="40%" CellSpacing=0 CellPadding=10 BGColor="OldLace" Border=3>
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<tr><td>
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<B>groove Rhumba
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<BR>
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Begin Scale
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<BR> define S1 1 1 90
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<BR> define S32 S1 * 32
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<BR> Sequence S32
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<BR> ScaleType Chromatic
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<BR> Direction Random
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<BR> Voice BirdTweet
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<BR> Octave 5 6 4 5
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<BR> RVolume 30
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<BR> Rtime 2 3 4 5
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<BR> Volume pp pp ppp ppp
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<BR>
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End
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<BR>
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DefGroove BirdRhumba </B>
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</td></tr>
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</Table>
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<P>
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The above is an extract from the
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<FONT Face="Serif" Color="Navy"><I>MMA</I></FONT> score. The entire song is
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included in the “songs” directory of this distribution.
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<P>
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A neat trick is to create the bird sound track and then add it to the
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existing Rhumba groove. Then define a new groove. Now one can select
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either the library “rhumba” or the enhanced “BirdRhumba” with a
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simple G<SMALL>ROOVE</SMALL> directive.
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<P>
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<BR>
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<B> Next:</B> <A NAME="tex2html882"
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HREF="node29.html">Frequency Asked Questions</A>
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<B> Up:</B> <A NAME="tex2html880"
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HREF="mma.html">Reference Manual</A>
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HREF="node27.html">Paths, Files and Libraries</A></DIV>
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<ADDRESS>
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bob
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2010-11-07
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