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.

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.

Hailed as the most pyrotechnic and adventurous concert of the 12th Ad Libitum Festival in Warsaw, Poland, the collective quintet of Agusti Fernandez on piano, Artur Majewski on trumpet, Albert Cirera on saxophones, Rafal Mazur on bass, and Ramon Prats on drums, rage and flow through three movements of "Flux", starting at the "Source" and ending in an "Estuary"; awesome.

Recorded at the 2014 Ad Libitum Festival in Warsaw, pianist and composer Agusti Fernandez was invited to perform four concerts in celebration of his 60th birthday, choosing his working trio Aurora for once concert, a solo performance of "El Laberint de la Memoria", his electroacoustic Thunder trio, and a large ensemble conduction: "River, Tiger Fire".

A beautifully evolving set of duos, or "paths" from Philadelphia saxophonist Keir Neuringer and Polish bassis Rafal Mazur, using monumental technique to support a dialog that's technical and intensely focused while remaining lyrically sophisticated and imaginative.

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.