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<LI><A NAME="tex2html1027"
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<LI><A NAME="tex2html1028"
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<H1><A NAME="SECTION003300000000000000000"></A>
<A NAME="sec-effects"></A>
<BR>
Creating Effects
</H1>
<P>
It's really quite amazing how easy and effective it is to create
different patterns, sequences and special effects. As
<FONT Face="Serif" Color="Navy"><I>MMA</I></FONT> was
developed lots of silly things were tried ... this chapter is an
attempt to display and preserve some of them.
<P>
The examples don't show any music to apply the patterns or sequences
to. The manual assumes that if you've read this far you'll know
that you should have something like:
<P>
<Table Hspace="40%" CellSpacing=0 CellPadding=10 BGColor="OldLace" Border=3>
<tr><td>
<B>1 C
<BR>
2 G
<BR>
3 G
<BR>
4 C </B>
</td></tr>
</Table>
<P>
as a simple test piece to apply tests to.
<P>
<H1><A NAME="SECTION003310000000000000000">
Overlapping Notes</A>
</H1>
<P>
As a general rule, you should not create patterns in which notes
overlap. However, here's an interesting effect which relies on
ignoring that rule:
<P>
<Table Hspace="40%" CellSpacing=0 CellPadding=10 BGColor="OldLace" Border=3>
<tr><td>
<B>Begin Scale
<BR> define S1 1 1+1+1+1 90
<BR> define S32 S1 * 32
<BR> Sequence S32
<BR> ScaleType
<BR> Direction Both
<BR> Voice Accordion
<BR> Octave 5
<BR>
End </B>
</td></tr>
</Table>
<P>
``S1'' is defined with a note length of 4 whole notes (1+1+1+1) so that
when it is multiplied for S32 a pattern of 32 8th notes is created.
Of course, the notes overlap. Running this up and down a chromatic
scale is ``interesting''. You might want to play with this a bit and
try changing ``S1'' to:
<P>
<Table Hspace="40%" CellSpacing=0 CellPadding=10 BGColor="OldLace" Border=3>
<tr><td>
<B>define S1 1 1 90 </B>
</td></tr>
</Table>
<P>
to see what the effect is of the notes overlapping.
<P>
<H1><A NAME="SECTION003320000000000000000">
Jungle Birds</A>
</H1>
<P>
Here's another use for S<SMALL>CALE</SMALL>s. Someone (certainly not the
author) decided that some jungle sounds would be perfect as an
introduction to ``Yellow Bird''.
<P>
<Table Hspace="40%" CellSpacing=0 CellPadding=10 BGColor="OldLace" Border=3>
<tr><td>
<B>groove Rhumba
<BR>
Begin Scale
<BR> define S1 1 1 90
<BR> define S32 S1 * 32
<BR> Sequence S32
<BR> ScaleType Chromatic
<BR> Direction Random
<BR> Voice BirdTweet
<BR> Octave 5 6 4 5
<BR> RVolume 30
<BR> Rtime 2 3 4 5
<BR> Volume pp pp ppp ppp
<BR>
End
<BR>
DefGroove BirdRhumba </B>
</td></tr>
</Table>
<P>
The above is an extract from the
<FONT Face="Serif" Color="Navy"><I>MMA</I></FONT> score. The entire song is
included in the ``songs'' directory of this distribution.
<P>
A neat trick is to create the bird sound track and then add it to the
existing Rhumba groove. Then define a new groove. Now one can select
either the library ``rhumba'' or the enhanced ``BirdRhumba'' with a
simple G<SMALL>ROOVE</SMALL> directive.
<P>
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<ADDRESS>
Bob van der Poel
2016-06-11
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