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 ; Audio out Audio in No messages -odac -iadc -d -M0 -Q1 ;;;RT audio I/O with MIDI in ; Required settings for WebAudio: sr = 48000 ksmps = 128 nchnls = 2 nchnls_i = 1 ; sr = 44100 ; kr = 4410 ; ksmps = 10 ; nchnls = 2 ; Example by Giorgio Zucco 2007 instr 1 ; Triggered by MIDI notes on channel 1 ivel veloc krate = 8 iscale = 100 ;f ; Random sequence from table f100 krnd randh int(14),krate,-1 knote table abs(krnd),iscale ; Generates random notes from the scale on ftable 100 ; on channel 1 of csound's MIDI output midion 1,knote,ivel endin f100 0 32 -2 40 50 60 70 80 44 54 65 74 84 39 49 69 69 ; Dummy ftable f0 60