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# XR7: EarthStrike
# www.xandis.com
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1. audio\ directory

The audio directory holds the music\ and waves\ directories
which together have all the music and audio effects files.

In XR7, the music is all of type MIDI and the effects are
standard waveforms (.WAV files). MIDI is normally not
particularly good but in this case most of the music is
really of a high quality. The XR7Audio class is sufficiently 
straight-forward for developers to be able to easily add support
for music capabilities in addition to MIDI.

Changing the music/sound in the game is as easy as editing the
level data files by replacing the filenames in the 'def music'
and 'def wave' blocks.

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