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<CsoundSynthesizer>
<CsOptions>
; Select audio/midi flags here according to platform
; Audio out Audio in No messages
-odac -iadc -d ;;;RT audio I/O
; For Non-realtime ouput leave only the line below:
; -o event.wav -W ;;; for file output any platform
</CsOptions>
<CsInstruments>
; Initialize the global variables.
sr = 44100
kr = 4410
ksmps = 10
nchnls = 1
; Instrument #1 - an oscillator with a high note.
instr 1
; Create a trigger and set its initial value to 1.
ktrigger init 1
; If the trigger is equal to 0, continue playing.
; If not, schedule another event.
if (ktrigger == 0) goto contin
; kscoreop="i", an i-statement.
; kinsnum=2, play Instrument #2.
; kwhen=1, start at 1 second.
; kdur=0.5, play for a half-second.
event "i", 2, 1, 0.5
; Make sure the event isn't triggered again.
ktrigger = 0
contin:
a1 oscils 10000, 440, 1
out a1
endin
; Instrument #2 - an oscillator with a low note.
instr 2
a1 oscils 10000, 220, 1
out a1
endin
</CsInstruments>
<CsScore>
; Make sure the score plays for two seconds.
f 0 2
; Play Instrument #1 for a half-second.
i 1 0 0.5
e
</CsScore>
</CsoundSynthesizer>
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