annotate examples/sound/midi/synth.scm @ 0:bf79fb79ee13

Initial Mercurial check in.
author samer
date Tue, 17 Jan 2012 17:50:20 +0000
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samer@0 1 (import "javax.sound.midi.*")
samer@0 2
samer@0 3 (define synth (MidiSystem.getSynthesizer))
samer@0 4 (define c0 (vector-ref (.getChannels synth) 0))
samer@0 5 (define (open) (.open synth))
samer@0 6 (define (close) (.close synth))
samer@0 7 (define (on pitch) (.noteOn c0 pitch 80))
samer@0 8 (define (off pitch) (.noteOff c0 pitch 0))
samer@0 9
samer@0 10 (open)