cantus infirmus

cantus infirmus
piano and sampler-piano in front of the piano-keys, tuned a quartertone lower.

for one player
2011

This is a "quadratic" keyboard piece. The player's hands move right and left as well as towards the player and away. I use 44 chords calculated according to the cubic difference tone cascade. Since the resolution is a quartertone, I cannot get closer to the accurate difference tones, I have to accept the shimmering sound quality, far away from cold mathematics, and the hybrid world between a real piano and a fake sample-sound-piano.

The Hamburgian pianist Bernhard Fograscher plays the soundfile. He found a spacy keyboardstand which gives space for the legs to reach the piano pedal and the additional keyboard-pedal. He can be seen at youtube:

https://www.youtube.com/watch?v=MIYIsRzGI98