import themidibus.*; //Import the library
MidiBus myBus;      // The MidiBus
int flagK = 0;            //flag by keyboard
int instrument = 1;     //selector

void setup() {
  size(400,200);
  background(0);
  MidiBus.list();      //Midi List
  myBus = new MidiBus(this, -1, "Microsoft MIDI Mapper");
  setInstrument(instrument);
  frameRate(60); 
}

void draw() {
  int channel = 0;       //channel
  int pitch = 60;          //sound tone
  int velocity = 127;   //strength
  fill(255);
  textSize(20);
  textAlign(CENTER);
  text("--- Play Music ---", 200, 80);
  textSize(12);
  String s = "Instrument No. = " + Integer.toString(instrument);
  text(s, 200, 100);
  text("Quit, press 'q' key", 200, 130);
  if (flagK == 1) {
    exit();
  }
  
  // Send a Midi noteOn
  myBus.sendNoteOn(channel, pitch, velocity); 
  delay(500);
  // Send a Midi nodeOff
  myBus.sendNoteOff(channel, pitch, velocity); 
  delay(500);
}

void keyPressed() {
  if (key == 'Q' || key == 'q') {  //quit
    flagK = 1;  //flag set
  }
}

void setInstrument(int value)
{
  byte data[] = new byte[2];
  data[0] = (byte)0xC0;
  data[1] = (byte)value;
  myBus.sendMessage(data);
}