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 ;;;RT audio out ;-iadc ;;;uncomment -iadc if RT audio input is needed too ; For Non-realtime ouput leave only the line below: ; -o delayr.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 gasig init 0 gidel = 1 ;delay time in seconds instr 1 ain pluck .7, 440, 1000, 0, 1 outs ain, ain vincr gasig, ain ;send to global delay endin instr 2 ifeedback = p4 abuf2 delayr gidel adelL deltap .4 ;first tap (on left channel) adelM deltap 1 ;second tap (on middle channel) delayw gasig + (adelL * ifeedback) abuf3 delayr gidel kdel line 1, p3, .01 ;vary delay time adelR deltap .65 * kdel ;one pitch changing tap (on the right chn.) delayw gasig + (adelR * ifeedback) ;make a mix of all deayed signals outs adelL + adelM, adelR + adelM clear gasig endin </CsInstruments> <CsScore> i 1 0 1 i 1 3 1 i 2 0 3 0 ;no feedback i 2 3 8 .8 ;lots of feedback e </CsScore> </CsoundSynthesizer>