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> -odac -d -F "MIDIpad.mid" ; For Non-realtime ouput leave only the line below: ; -o scanu-musical.wav -W ;;; for file output any platform </CsOptions> <CsInstruments> ; Required settings for WebAudio: sr = 48000 ksmps = 128 nchnls = 2 nchnls_i = 1 ; by Shengzheng Zhang (aka John Towse) ; sr = 44100 ; ksmps = 32 ; nchnls = 2 0dbfs = 1 itmp ftgen 1, 0, 128, 7, 0, 64, 1,64, 0 ; generating all bunch of tables needed itmp ftgen 2, 0, 128, -7, 1, 128, 1 itmp ftgen 3, 0, 16384, -23, "string-128.matrxB" itmp ftgen 4, 0, 128,-7 ,0.5 ,128, 0 itmp ftgen 5, 0, 128, -7, 1, 128, 1 itmp ftgen 6, 0, 128, -7, 0, 128, 0 itmp ftgen 7, 0, 128, -7, .001, 128,128 gal init 0 ; getting reverb and delay ready gar init 0 gavl init 0 gavr init 0 instr 1 kpan randh 1, 3 ; random panning kpan port kpan, 0.05 ;make the panning change not so quick kpitch cpsmidib 12 ipitch cpsmidi kenvm madsr 0.02, 0.6, 0.2, 1 kenv2 madsr 0.1, 0.6, 0.8, 1 kenv3 madsr 0.8, 0.6, 0.8, 1 kvib lfo 1, 5 ifnvel = 1 ifnmass = 2 ifnstif = 3 ifncentr = 4 ifndamp = 5 kstif = 0.3 + 0.1*kvib * kenv3 kmass = 10-(5*kenvm) ; modulated mass kcentr = 0.1 kdamp = -0.02 ileft = 0.2 iright = 0.8 kpos = 0.2 kstrngth = 0.005 ;setups for scan synthesis a2 madsr 0.002, 0.01, 0.001, 0 ;get a initial pick, but seemed like not working scanu 1, 0.1,ifnvel, ifnmass,ifnstif,ifncentr, ifndamp,kmass, kstif, kcentr, kdamp, ileft, iright,kpos,kstrngth, a2*0.5, 0.2, 1 a1 scans .01*kenv2, kpitch+kpitch*kvib*kenv3*0.01, 7, 1 a1 dcblock a1 a1 butterlp a1, kpitch*8 a1 butterlp a1, kpitch*12 al = a1*kpan ar = a1*(1-kpan) outs al, ar vincr gal, al vincr gar, ar vincr gavl, al vincr gavr, ar endin instr 2 abuf delayr 5 adl deltap 0.3 delayw gal + (adl * 0.2) abuf delayr 5 adr deltap 0.4 delayw gal + (adr * 0.2) outs adl, adr clear gal clear gar endin instr 3 adl, adr reverbsc gavl, gavr, 0.85, 12000 outs adl, adr clear gavl clear gavr endin </CsInstruments> <CsScore> i2 0 70 i3 0 70 e </CsScore> </CsoundSynthesizer>