How to Build An Arduino Based Touch Capacitive Piano with Recording and Replay - YouTube
Arduino Piano Board from Cheerful Electronic on Tindie
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
Old midi keyboard - Device Hacking - Arduino Forum
4Duino Electronic Piano
Code Tinker Hack: How to turn Piano toy into MIDI keyboard (using Arduino /Atmega)
Arduino pocket piano synth - coming soon! - Make:
How to make an electronic piano using Arduino - YouTube