Synthesist and inventor Christophe Duquesne (La Voix du Luthier) shared this improvisation for Muro Box and Onde.

The Muro Box is an electro-mechanical music box that can be ordered with a MIDI connection, as an option, so it can be used as a MIDI-controllable instrument.

Duquesne pairs it with the La Voix du Luthier Onde, which is an acoustic resonator, and records the sound of the resonator. The resulting sound is like a music box that has some of the resonance of a guitar or piano.