This should play if your Web browser has WebAssembly enabled (most do). Most examples will play unless they need to load files. The first time you click Play, Csound will spend a few seconds loading, then play. You can edit this code and replay it.
<CsoundSynthesizer> <CsOptions> ; Select audio/midi flags here according to platform -odac ;;;realtime audio out ;-iadc ;;;uncomment -iadc if realtime audio input is needed too ; For Non-realtime ouput leave only the line below: ; -o sfplay3m.wav -W ;;; for file output any platform </CsOptions> <CsInstruments> ; Required settings for WebAudio: sr = 48000 ksmps = 128 nchnls = 2 nchnls_i = 1 ; By Menno Knevel - 2020 ; sr = 44100 ; ksmps = 32 ; nchnls = 2 0dbfs = 1 gisf sfload "07AcousticGuitar.sf2" sfplist gisf sfpassign 0, gisf ; assign the preset to number 00 instr 1 inum = p4 ivel = p5 kamp linsegr 1, 1, 1, .1, 0 kamp = kamp/900000 * ivel ;scale amplitude and make velocity dependent kfreq = 1 ;do not change freq from sf aout sfplay3m ivel, inum, kamp, p6, 0, 1 ;preset index = 0, set flag to frequency instead of midi pitch outs aout, aout endin </CsInstruments> <CsScore> i1 0 1 60 127 400 ; take the samples from key 60 and set new frequency i1 + 1 60 90 < i1 + 1 60 60 < i1 + 1 60 10 200 e </CsScore> </CsoundSynthesizer>