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 gen07.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 ;use GEN07 to alter frequency ifn = p4 ;use different GEN07 tables kcps init 10/p3 ;index ftable 10 times over the duration of entire note kndx phasor kcps ixmode = 1 ;normalize index data kfrq tablei kndx, ifn, ixmode kfrq = kfrq*1000 ;scale asig poscil .8, 1220+kfrq, 1 ;add to frequency outs asig, asig endin </CsInstruments> <CsScore> f 1 0 8192 10 1 ;sine wave f 2 0 1024 7 0 512 1 0 -1 512 0 ;sawtooth up and down f 3 0 1024 7 1 512 1 0 -1 512 -1 ;square f 4 0 1024 7 1 1024 -1 ;saw down i 1 0 2 2 i 1 + 2 3 i 1 + 1 4 e </CsScore> </CsoundSynthesizer>