Nearly a decade after their first duo collaboration, Ape Green on the Creative Sources label, Wuppertal-born and Berlin-based double bassist Alexander Frangenheim joins again with Baltimore-based trombonist Patrick Crossland for two live performances of wildly creative interaction: first at the 2022 Livewire 12 Festival, then at The Record Shop in Brooklyn.

Working together many years in various formations--saxophonist Michel Doneda & drummer Roger Turner with John Russell; bassist Alexander Frangenheim & Turner in quartets with Pat Thomas or Phil Wachsman; Doneda & Frangenheim's own duo--this concert at Jazzatelier Ulrichsberg recorded during their European tour shows their incredible compatibility and seemingly telepathic conversations.

A set of pointillistic improvisations from the collective, chamber-oriented, freely improvising trio of Biliana Voutchkova (violin), Alexander Fragenheim (double bass) and Antonis Anissegos (piano), recording in the studio in Berlin in 2016 for seven "archives" named for the length of each relatively succinct improvisation, from "Archive 4 04" to "Archive "7 38".

Two string players, Swedish acoustic guitarist and banjo player Niklas Fite, and German double bassist Alexander Frangenheim, recording in the studio in Berlin in 2017 for 10 succinct improvisations ranging from quick interactive discourse of a pointillistic nature to near silent meditations using unusual and extended techniques, a quirky and informed album.

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.

Active and exciting electroacoustic improvisation with a strong emphasis on the electronics from Richard Scott and his uniquely developed modular synthesizer, from this Berlin-based collective trio with double bassist Alexander Frangenheim and trumpeter Nikolaus Neuser, exploring Trialectics, a complex system of 21st century thought and formal logic.

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.