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 fluidCCk.wav -W ;;; for file output any platform </CsOptions> <CsInstruments> ; Required settings for WebAudio: sr = 48000 ksmps = 128 nchnls = 2 nchnls_i = 1 ; sr = 44100 ; ksmps = 32 ; nchnls = 2 0dbfs = 1 giengine fluidEngine ; soundfont path to manual/examples isfnum fluidLoad "22Bassoon.sf2", giengine, 1 fluidProgramSelect giengine, 1, isfnum, 0, 70 instr 1 mididefault 60, p3 midinoteonkey p4, p5 ikey init p4 ivel init p5 kpan line 0, p3, 127 ;panning from left to right fluidCCk giengine, 1, 10, kpan ;CC 10 = pan fluidNote giengine, 1, ikey, ivel endin instr 99 imvol init 7 asigl, asigr fluidOut giengine outs asigl*imvol, asigr*imvol endin </CsInstruments> <CsScore> i 1 0 4 48 100 i 1 4 2 50 120 i 1 6 1 53 80 i 1 7 1 45 70 i 1 8 1.5 48 80 i 99 0 10 ;keep instr 99 active e </CsScore> </CsoundSynthesizer>