Karlheinz Essl's first piece for toy piano, composed 2005 for Isabel Ettenauer, became a signature piece for this instrument.

The primary aim of this piece is an attempt to break up the restricted sound world of the toy piano - not by superficial means of additional sound processing, but by the sound of the instrument itself. This is achieved by a sound file which is played back by a small loudspeaker which is hidden inside the toy piano; this creates a perfect blend between the sounds of the instrument and the sounds from the loudspeaker.

Info and score: http://www.essl.at/works/kalimba.html