Barcelona pianist Agustí Fernández and Polish bass guitarist Rafał Mazur correspond through solo tracks recorded in their respective studios, each missive an unusual and impressive free improvisation using extended techniques, inside playing and inexplicable exclamation, in a five-part exchange where each message is alternately addressed "Dear Agusti" and "Dear Rafał".

The first Wandering The Sound album in 2018 was the trio of Argentinian reedist Guillermo Gregorio, Spanish drummer Ramón López and Polish bassist Rafał Mazur, here extended to a quintet with pianist Satoko Fujii and trumpeter Natsuki Tamura for a 2019 concert at Alchemia in Poland, a masterful example of free improv based on a poem by Ikkyu Sojun, a Zen master from the 15th century.

Live concert recordings at Alchemia club in Krakow captured during the Krakow Jazz Autumn Festival 2019 while double bassist Joëlle Léandre held residence, 3 CDs presenting first a quartet with Zlatko Kaucic on drums & percussion, Mateusz Rybicki on clarinets and Zbigniew Kozera on bass, then one disc in a duo with Zlatko Kaucic and another with guitarist Rafal Mazure.

Not Two Records celebrates their 20th Anniversary with a festival in Wlen, Poland, inviting 13 of the finest European & US improvisers--Guy, Leandre, Mazur, Nilssen-Love, Kaucic, Fernandez, Gustafsson, Vandermark, Trzaska, Brotzmann, Swell, Holmlander, & Homburg--performing in configurations from duo to quintet, released in a limited 5-CD wooden box set.

Slovenian percussionist Zlatko Kaucic reinforces the title of his "Diversity" box set over 5 CDs in a variety of solo, duo, trio and quartet setting, including some of the UK & Europe's finest improvisers--Evan Parker, Agusti Fernandez, Lotte Anker, Artur Majewski, Rafal Mazur, Phil Minton, and Johannes Bauer--an excellent example of his wide-ranging work as an improviser.

Splatter's 3rd CD resulted from a meeting between the London-based quartet Splatter (Noel Taylor-clarinet; Anna Kaluza-sax; Tom Greenhalgh-drums; Pedro Velasco-electric guitar) and Polish bassist Rafal Mazur after their successful collaboration at Cafe Oto in 2010.