A superb mix of propulsive free jazz and pensively introspective free improv from the quartet of Frank Gratkowski on alto saxophone, clarinets & flutes, Achim Kaufmann on piano, Wilbert de Joode on bass, and Tony Buck (The Necks) on drums & percussion, recorded in a live concert at Loft, in Koln, Germany in 2018 for six inspired collective improvisations.

The trio of Frank Gratkowski on clarinets and alto sax, Michael Vorfeld on percussion, and Richard Scott on modular synthesizer, also known as Spectre, freely improvising in dramatic and generally reserved ways, intently focusing on sound and interchange.

A curious and remarkably enjoyable collection of works from Jorrit Dijkstra (sax, lyricon and electronics) in a quintet with Phillip Greenlief (reeds), Kyle Bruckman (double reeds & electronics), Frank Gratkowski (reeds), and Jon Raskin (sax & electronics).

NY based German-French bassist Pascal Niggenkemper in a European septet with reedist Frank Gratkowski, pianist Eve Risser, violist Frantz Loriot, vibraophonist Els Vandeweyer, voicals Emilie Lesbros, and drummer Christian Lillinger recording at the Loft, Cologne.

German reeidst Frank Gratkowski in a trio with West Coast percussionist Jerome Bryerton and bassist Damon Smith, in an album of free music that blends the sensibilities of free improv with contemporary compositional music.

Three West Coast saxophonists, Jon Raskin (Rova), Frank Gratkowsk (Zeitkratzer) and Phillip Grenlief, in a free improvising trio of highly interactive music using extended techniques to captivate and entertain the listener.

A live concert of Fields' Quite Large Orchestra (aka Multiple Joyce Orchestra) with Frank Gratkowski, Christina Fuchs, Thomas Lehn, Carl Hubsch, &c. &c. performing modular compositions for improvising chamber group, plus an homage to Merzbow.

Live recordings from the duo of saxophonist Frank Gratkowski and drummer Hamid Drake performing in New Orleans in 2009; amazing and far-ranging dialog from two masters.