TetaTricks/code/midibeep.ck

MidiIn          input;
MidiMsg         msg;

1 => int port;                  // please explain

if (!input.open(port)) {
        <<< "erreur open MIDI" >>>;    me.exit();
        }

while (1) {
        input => now;
        while ( input.recv(msg) ) {
                <<< msg.data1, msg.data2, msg.data3 >>>;
                }
        }