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 real audio input is needed too ; For Non-realtime ouput leave only the line below: ; -o prepiano.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 instr 1 ;; fund NS detune stiffness decay loss (bndry) (hammer) scan prep aa,ab prepiano 60, 3, 10, p4, 3, 0.002, 2, 2, 1, 5000, -0.01, p5, p6, 0, 0.1, 1, 2 outs aa*.2, ab*.2 endin </CsInstruments> <CsScore> f1 0 8 2 1 0.6 10 100 0.001 ;; 1 rattle f2 0 8 2 1 0.7 50 500 1000 ;; 1 rubber i1 0.0 1 1 0.09 20 i1 1 . -1 0.09 40 ;; 1 -> skip initialisation i1 2 . -1 0.09 60 i1 3 . -1 0.09 80 i1 4 1.8 -1 0.09 100 e </CsScore> </CsoundSynthesizer>