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 ; Audio out Audio in -odac -iadc ;;;RT audio I/O ; For Non-realtime ouput leave only the line below: ; -o ftgen-2.wav -W ;;; for file output any platform </CsOptions> <CsInstruments> ; Required settings for WebAudio: sr = 48000 ksmps = 128 nchnls = 2 nchnls_i = 1 sr = 48000 ksmps = 16 ; nchnls = 2 ;Example by Jonathan Murphy 2007 0dbfs = 1 instr 1 Sfile = "beats.wav" ilen filelen Sfile ; Find length isr file; sr Sfile ; Find sample rate isamps = ilen * isr ; Total number of samples isize init 1 loop: isize = isize * 2 ; Loop until isize is greater than number of samples if (isize < isamps) igoto loop itab ftgen 0, 0, isize, 1, Sfile, 0, 0, 0 print isize print isamps turnoff endin </CsInstruments> <CsScore> i1 0 10 e </CsScore> </CsoundSynthesizer>