The Peanuts cartoon character Schroeder liked to bang out Beethoven a toy piano. Now, thanks to this hack from [Liam Lacey], Schroeder can switch to Skrillex. That’s because [Liam] built a polyphonic synth into a toy piano. It’s an impressive build that retains the look and feel of the piano, right down to a laser-etched top panel with knobs that match the glossy black styling.
The brains of the synthesizer is a Beaglebone Black using the Maximillian synthesis library. To capture the key presses, he used Velostat, a pressure-sensitive material that changes resistance under pressure. This is probably the only toy piano in the world with fully polyphonic velocity and aftertouch. The build also includes MIDI support, with two ports on the back. [Liam]’s build log is full of more details than we can even summarize here.
This beautiful build won [Liam] first place in the Element 14 Music Tech competition, and it is a well-deserved prize for a clean and elegant way to update a vintage piano.