Since 2019, Amsterdam-based curator Pieter Jansen has used his yeyeh label as a vehicle for carefully considered (and sometimes unlikely) ‘first time’ collaborations between different experimental and avant-garde artists including Eversines, Carolina Eyck, Greetje Bijma and Oceanic. After pairing saxophonist/composer/producer Jerzy Maczyński with fellow Polish experimentalist Waclaw Zimpel on 2021 collaborative release Sariani (which was credited to Jerry&ThePelicanSystem in a nod to the former’s earlier album for Warner Music’s Polish Free Jazz series), yeyeh founder Pieter Jansen had an idea. That simple idea – getting Maczyński in the studio with Chicagoan DJ/producer Hieroglyphic Being – was the genesis of this record, the debut album by Universal Harmonies & Frequencies. In June 2022, Hieroglyphic Being flew to Amsterdam to spend five days improvising with Maczyński in a rented studio beneath Volkshotel, under the watchful eye of recording and mix engineer Rein De Sauvage Nolting, better known in electronic music circles for his work as RDS. During those sessions, 26 long, improvised compositions were recorded, with Maczyński contributing saxophones and electronic tools, and Hieroglyphic Being laying down synthesizer parts and vocals. These sessions were captured on film by VLF (Katarzyna Debska), who later created the artwork and visual language for this record release. Some days after the recording sessions, Sauvage Nolting – who had delivered artistic input during the improvisations – sat down with Jansen to select 13 pieces to put forward for the album and a loose conceptual framework. It was then that the hard work began. While a decision was taken to present some improvisations in full, most of what you will hear on Tune IN, as the album is titled, is based on fragments of improvisation. The resultant pieces were reconfigured, re-worked and re-produced by Maczyński and Sauvage Nolting over many months, and in discussion with Hieroglyphic Being. Maczyński added more layers of instrumentation, creating a “whole digital band of reed instruments” – a method he previously utilized on Sariani. What you hear when you play the record defies categorization. It is rooted in a specific moment in time and the spontaneity of musical improvisation – both Maczyński and Hieroglyphic Being are experienced improvisers, albeit with different musical instruments and tools – but also the product of extensive post-production and reflective re-shaping. It is not free-jazz, ambient, electronica, rhythmic cubism (as Hieroglyphic Being’s distinctive sound has previously been called), or avant-garde experimentalism, but something that combines all these musical approaches and more, with a sprinkling of far-sighted futurism mixed in. It is a magical and mystical meeting of musical minds that will pass the test of time in decades to come.