F. and K. F. began their intensive collaboration early in 2004 when Kai
had the opportunity to stay in Vienna for a while.
Kai plays his clarinet with an approach of sound and noise phenomena,
while Klaus uses a laptop with material based on sine waves, which he
can organize and manipulate in various ways. The conjoined sound of the
clarinet and sine waves result in a rich spectrum of difference tones
and beat frequencies, which is a basic focus of the duo besides of a wide
range of dynamics and pitches. The duo sound includes very transparent
and quiet noise sections, droning clusters, beauteous harmonic chords
and massive vibrating tone walls ... and (near by) no glissandi.
In summer 2004 they performed at the Konfrontationen-Festival (Nickelsdorf,
Austria) and did recordings for their debut-CD "Stand Clear"
on Creative Sources Recordings (Lisbon) released in June 2005.