Belgian ambient composer Dominique Lawalrée has died, Blank Forms confirmed. He was 65.

In 1976, Lawalrée founded the Editions Walrus imprint as a way to share his non-commercial solo work. Through his label, Lawalrée recorded prolifically—he released over 500 compositions and 29 albums throughout his career. His music, often consisting of meditative patterns on keyboards and synthesizer, was associated with the New Simplicity movement. Following a “mystical experience” in the ’90s, he turned to liturgical work. A compilation of his early material, First Meeting, arrived in 2017.