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 -odac -iadc ;;;RT audio I/O ; For Non-realtime ouput leave only the line below: ; -o ftsave.wav -W ;;; for file output any platform </CsOptions> <CsInstruments> ; Required settings for WebAudio: sr = 48000 ksmps = 128 nchnls = 2 nchnls_i = 1 ; Initialize the global variables. ; sr = 44100 ; kr = 4410 ; ksmps = 10 ; nchnls = 1 ; Table #1, make a sine wave using the GEN10 routine. gitmp1 ftgen 1, 0, 32768, 10, 1 ; Table #2, create an empty table. gitmp2 ftgen 2, 0, 32768, 7, 0, 32768, 0 ; Instrument #1 - a basic oscillator. instr 1 kamp = 20000 kcps = 440 ; Use Table #1. ifn = 1 a1 oscil kamp, kcps, ifn out a1 endin ; Instrument #2 - Load Table #1 into Table #2. instr 2 ; Save Table #1 to a file called "table1.ftsave". ftsave "table1.ftsave", 0, 1 ; Load the "table1.ftsave" file into Table #2. ftload "table1.ftsave", 0, 2 kamp = 20000 kcps = 440 ; Use Table #2, it should contain Table #1's sine wave now. ifn = 2 a1 oscil kamp, kcps, ifn out a1 endin </CsInstruments> <CsScore> ; Play Instrument #1 for 1 second. i 1 0 1 ; Play Instrument #2 for 1 second. i 2 2 1 e </CsScore> </CsoundSynthesizer>