File consists of program and recordings for performance recorded February 20, 2023, Tanna Schulich Hall, McGIll University. Bill Mahar, Jonathan Lindhorst, artistic directors. Works: Bley, Carla. 440; Bley, Carla. Wrong key donkey; Bley, Carla. Musique mécanique; Bley, Carla. The lone arranger; Bley, Carla. I hate to sing; Bley, Carla. Walking batterie woman; Leadbelly, 1885-1949. Ella speed; Ellington, Duke, 1899-1974. Braggin’ in brass; Yorke, Thom. Pyramid song; Bagnell, Steve. Axes; Barth, Bruce. Hope springs eternal.