Urs Leimgruber's 1992 avant-garde jazz album, "L'énigmatique," is a captivating exploration of sound and improvisation. Released on the hat ART CD label, this 58-minute journey delves into the realms of free jazz and avant-garde music, showcasing Leimgruber's mastery of the saxophone and his innovative approach to composition. The album features 13 tracks, each offering a unique blend of spontaneity and structure, with titles like "Ping," "The Arrival," and "African Device" hinting at the diverse sonic landscapes that await. Leimgruber's work on "L'énigmatique" is a testament to his skill and creativity, making it a compelling addition to any jazz enthusiast's collection.