for cello og prepareret klaver cello and prepared piano
A kaleidoscope is a tube-shaped optical instrument with mirrors inclined to each other in an angle, so that small pieces of colored glass at the end of the tube are seen as symmetric patterns when viewed from the other end. Rotation of the tube causes motion of the glass pieces, resulting in new patterns.
Kaleidoscope for cello and piano is a lyrical sonata that creates similar ever-changing musical patterns. The piece is based on musical material from my chamber opera
"A Doll's House", in which both of the two young musicians who premiered and recorded the sonata took part.