Arduino + LEDs + MIDI Keyboard + MuseScore = Piano Tutor

This weekend project consists in turning your MIDI-capable keyboard or digital piano into a full piano learning & tutoring system, i.e., an interactive lighted keyboard/piano based on the opensource MuseScore sheet music editor & player, a common Arduino board and an LED stripe. The system will let you practice a piano piece on the keyboard without any need for reading sheet music: just load any MIDI file on MuseScore, play it activating the Piano Tutor function, and then follow the LEDs lighting up on the stripe deployed along your keyboard, repeating as many times as needed.

Please check out instructions in this tutorial.