/*
 MIDI note player
 This sketch shows how to use the serial transmit pin (pin 1) to send MIDI note data.
 If this circuit is connected to a MIDI synth, it will play
 the notes F#-0 (0x1E) to F#-5 (0x5A) in sequence.

 The circuit:
 * digital in 1 connected to MIDI jack pin 5
 * MIDI jack pin 2 connected to ground
 * MIDI jack pin 4 connected to +5V through 220-ohm resistor
 Attach a MIDI cable to the jack, then to a MIDI synth, and play music.

 created 13 Jun 2006
 modified 30 Aug 2011
 by Tom Igoe

 This example code is in the public domain.
www.arduino.cc/en/Tutorial/MIDI
 */

 void setup() {
 // Set MIDI baud rate:
 Serial.begin(31250);
 }

 void loop() {
 // play notes from F#-0 (0x1E) to F#-5 (0x5A):
 for (int note = 0x1E; note < 0x5A; note ++) {
 //Note on channel 1 (0x90), some note value (note), middle velocity (0x45):
 noteOn(0x90, note, 0x45);
 delay(100);
 //Note on channel 1 (0x90), some note value (note), silent velocity (0x00):
 noteOn(0x90, note, 0x00); 
 delay(100);
 }
 }

 // plays a MIDI note. Doesn't check to see that
 // cmd is greater than 127, or that data values are less than 127:
 void noteOn(int cmd, int pitch, int velocity) {
 Serial.write(cmd);
 Serial.write(pitch);
 Serial.write(velocity);
 }