An extended studio improvisation recorded in Berlin-Weissensee, Germany in 2016 from the restrained quartet of Axel Dorner on trumpet, Nuno Torres on alto sax, Alexander Frangenheim on double bass, and Ernesto Rodrigues on viola, using advanced techniques in a monumental journey that finds the quartet in a variety of expansive and intriguing dialogs.

The freely improvising quartet of Ernesto Rodrigues, Axel Dorner, Nuno Torres and Alexander Frangenheim recorded this beautiful album of dark sound in Germany in 2014, 3 movements of understated dialog using unexpected techniques in a subtle dialog.

An excellent quartet of UK and European improvisers recording at Gateway Studio, London in 1997, a set of 8 intriguing recordings emphasizing the acoustics end of free improvisation with accented electronic interventions.

A free improvisation session with Gunter Christmann on cello and trombone, Alexander Fragenheim on double bass, and extended free vocalist Elke Schipper.

Double bassist Alexander Frangenheim, peer to Phil Durrant, Evan Parker, Phil Wachsman, Thomas Lehn, Roger Turner, &c., in a 17 part solo work of gripping and exhilarating playing.