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 tival.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 idur = abs(p3) ;make p3 positive even if p3 is negative in score itiv tival i1 = -1 ;assume this is tied note, so keep fase of oscili tigoto slur ;no reinitialisation on tied notes i1 = 0 ;first note, so reset phase aatt line p4, idur, 0 ;primary envelope slur: if itiv==0 kgoto note ;no expression on first and second note aslur linseg 0, idur*.3, p4, idur*.7, 0 ;envelope for slurred note aatt = aatt + aslur note: asig oscili aatt, p5, 1, i1 outs asig, asig endin </CsInstruments> <CsScore> f1 0 4096 10 1 ;sine wave i1 0 -5 .8 451 ;p3 = 5 seconds i1 1.5 -1.5 .1 512 i1 3 2 .7 440 ;3 notes together--> duration = 5 seconds e </CsScore> </CsoundSynthesizer>