Turning a Vintage Toy Piano into a MIDI Controller Using Arduino : Ask.Audio
Code Tinker Hack: How to turn Piano toy into MIDI keyboard (using Arduino /Atmega)
Overview | MIDI for Makers | Adafruit Learning System
How to Build An Arduino Based Touch Capacitive Piano with Recording and Replay - YouTube
Amazon.com: Mini Piano Module, Mini Piano Module for Micro:bit, Mini Piano Module Expansion Board Capacitive Touch Controller TTP229 I2C Interface for Micro:bit : Musical Instruments
Arduino Piano Board from Cheerful Electronic on Tindie
Make A DIY Synth MIDI Control With Arduino « Adafruit Industries – Makers, hackers, artists, designers and engineers!