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 -d ;;;realtime audio out ;-iadc ;;;uncomment -iadc if realtime audio input is needed too ; Required settings for WebAudio: sr = 48000 ksmps = 128 nchnls = 2 nchnls_i = 1 ; By Stefano Cucchi - 2020 ; Initialize the global variables. ; sr = 44100 ; ksmps = 32 ; nchnls = 2 0dbfs = 1 instr 1 ; Instr 1 trigger instr 2: every time you press any key, instr 2 produce a note. ; The pitch of the tone produced by instr 2 is equal to the ASCII code of the key pressed. gkNumber, gkPress sensekey if changed(gkPress) == 1 then if (gkPress == 1) then event "i", 2, 0, 0.3 endif endif endin instr 2 iCps init i(gkNumber) print iCps asig oscili 0.2, iCps, 1 kenvelope linseg 0, 0.1, 1, 0.1, 1, 0.1, 0 outs asig*kenvelope, asig*kenvelope endin f 1 0 4096 10 1 1 0.3 0 0.2 0.3 0.5 i 1 0 2000 e