send midi messages with node.js

midi.js

var midi = require('midi'),
    midiOut = new midi.output();

try {
  midiOut.openPort(0);
} catch(error) {
  midiOut.openVirtualPort('');
}

var loop = function() {
  midiOut.sendMessage([144,60,100]);
  console.log('note sent');
};

var interval = setInterval(loop, 1000);

process.on("SIGTERM", function(){
  clearInterval(interval);
  midiOut.closePort();
});