http://endemitarchives.blogspot.sk/search/label/Raptor%20Koch
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Tomáš Procházka, working under family name Federsel, is Prague based musician, improviser, sound artist and performer. He works with field recordings, media archeology, all kinds of electric and acoustic instruments as well as purely electronic systems, mostly based on analog electronics. In his solo work uses feedbacks, electromagnetic interference and various parasitic sounds. He performs no input mixing board, prepared guitar and amplified objects or works with various found media as well as instruments, usually not used the correct way. 
He is founder of theatre company HANDA GOTE research & development  
and plays with bands B4, Gurun Gurun, Federsel&Mäkelä, Wabi Experience and also performs solo under name Federsel. 
In theater, he has been doing research work in the field of post spectacular, antimimetic theater and the integration of science and technology in performing arts. 
He is founder of Wakushoppu concert series, Prague monthly meeting of non idiomatic improvizers.
On his own blog Endemit Archives he tries to collect pieces from local deep underground, freak-out, outsider music, plain-weird music, all kinds of antimusic activities and strictly-home-recording audio.
In 2014, together with his colleague Pasi Mäkelä, he launched microlabel METEORISMO, base for iconoclastic music projects.

M.R. plays in even more secret bands, making music for radio and theater. His live performances are a blow to the current mood, combining electronics and voice, field recordings and beats, noise and silence. Säkkikangas through the mask not only wildly spits and spouts, but also takes a squeaky patch of wad of box-like noise forward.

Followers of A.Danoczi - Recyclations