Kreol is a piece of software that turns a traditional qwerty keyboard into a musical instrument played by typing.

[1] Kreol is played by pressing keys which correspond to musical notes or chords depending on how the user commands it.

"But unlike a normal piano, Kreol players can alter the 'Do' note – the root of the scale – in order to play the same melody in a different key, sort of like a guitarist sliding a chord to a new area of the fretboard.

"[2] Kreol has phrase and pitchbend capabilities operated by the mouse.

Kreol was conceived and created by Mike Block and Jerzy Gangi.