MIDI

• The Hairless MIDI to Serial Bridge.
• MIDI Monitor is an app to display MIDI signals going in and out of your Mac.
• Arduino. MIDI Note Player
• LAB: MIDI output using an Arduino.
• HIDUINO
• https://github.com/ddiakopoulos/hiduino
• MIDI for the Arduino. YouTube.
• Arduino MIDI Library.
• MIDI playback on Mac OS X.
• MIDI Note Numbers for Different Octaves.

Android

• https://github.com/googlesamples/android-MidiSynth

Quick Start (OS X)

1. Follow the Getting Startedsection (Hairless MIDI).
2. Enable the IAC virtual MIDI port.

• Open the OS X built-in Audio MIDI Setup application (under Applications->Utilities.)
• Choose Show MIDI Window from the Window menu.
• Double-click the IAC Driver in the MIDI window.
• Check the Device is online box in the dialog that appears.
• Go back to Hairless MIDI<->Serial and there should be a new IAC Bus option in the dropdown. The other MIDI program should also see the IAC bus option.

3. Open GarageBandand have fun! :)

SoundFonts

• https://sites.google.com/site/soundfonts4u/
• http://www.synthfont.com/links_to_soundfonts.html

fluidsynth

fluidsynth -i SGMv2.01-JN-SMPv1.1.sf2 Frank_Sinatra_-_More.mid 

• Building a MIDI Synth With a Raspberry Pi.

MIDI on Linux

• Ted's Linux MIDI Guide.