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 No messages -odac ; -iadc -d ;;;RT audio I/O ; For Non-realtime ouput leave only the line below: ; -o scans.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 = 1 instr 1 a0 = 0 ; scanu init, irate, ifnvel, ifnmass, ifnstif, ifncentr, ifndamp, kmass, kstif, kcentr, kdamp, ileft, iright, kpos, kstrngth, ain, idisp, id scanu 1, .01, 6, 2, 3, 4, 5, 2, .1, .1, -.01, .1, .5, 0, 0, a0, 1, 2 ;ar scans kamp, kfreq, ifntraj, id a1 scans ampdb(p4), cpspch(p5), 7, 2 out a1 endin </CsInstruments> <CsScore> ; Initial condition f1 0 128 7 0 64 1 64 0 ; Masses f2 0 128 -7 1 128 1 ; Spring matrices f3 0 16384 -23 "string-128.matrxB" ; Centering force f4 0 128 -7 0 128 2 ; Damping f5 0 128 -7 1 128 1 ; Initial velocity f6 0 128 -7 0 128 0 ; Trajectories f7 0 128 -5 .001 128 128 ; Note list i1 0 10 86 6.00 i1 11 14 86 7.00 i1 15 20 86 5.00 e </CsScore> </CsoundSynthesizer>