The Scandinavian project "Arcanum" brings together four artists who have worked with ECM for many years: Arve Henriksen, Trygve Seim, Anders Jormin and Markku Ounaskari. They have played together in various contexts over the years, but this is their first album as a quartet. Compositions by Anders Jormin and Trygve Seim, the Finnish song "Armon Lapset" and Jormin's arrangement of Ornette Coleman's "What Reason Could I Give" are embedded in a program of graceful collective improvisations characterized by great lyrical imagination, thoughtful solos and sensitive interplay. "Arcanum", recorded at Village Recording Studio, Copenhagen and mixed in Munich in January 2025, was produced by Manfred Eicher.