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.
; 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 seqtime2.wav -W ;;; for file output any platform ; Required settings for WebAudio: sr = 48000 ksmps = 128 nchnls = 2 nchnls_i = 1 ; sr = 44100 ; ksmps = 32 ; nchnls = 2 0dbfs = 1 gitabMap2 ftgen 57,0,512,-2, 1,1/4,1/4,1/8,1/8,1/8,1/8,1/4,1/4,.5,1/4,1/4,1/16,1/16,1/16,1/16,1/16,1/16,1/16,1/16 gisine ftgen 1,0,512,10, 1 instr 1 ktrigin metro .333333333333 ktrig2 metro 1 schedkwhen ktrig2, 0,0, 2, 0, .1 ; just to set the metronome! kspeed init 1 ; ktime_unit, kstart, kloop, initndx, kfn_times ktrig seqtime2 ktrigin, kspeed, 0, 20, 2, gitabMap2 ;ktrig seqtime kspeed, 0, 20, 0, gitabMap2 ; try with seqtime too... schedkwhen ktrig, 0, 0, 3, 0, ktrig ; the duration is got from seqtime2 output! endin instr 2 a1 line 1,p3,0 aout oscili 0.7*a1,500,gisine outs1 aout endin instr 3 a1 line 1,p3,0 aout oscili 0.7*a1,1000,gisine outs2 aout endin i1 0 20 ;f0 3600