File consists of program and recordings for performance held on November 18, 2019, Pollack Hall, Schulich School of Music, McGill University, Montreal. Featuring: Ali Yazdanfar, double bass ; Eric Chappell, double bass ; Renaud Boucher-Browning, double bass ; Brigitte Poulin, piano ; Luke Bell, piano ; Fabrice Marandola, percussion ; Brice Gatinet, electronics ; Jeanne Corpataux-Blance, double bass ; Samuel-San Vachon, double bass ; Freddy Speer, double bass ; Jemma Jones, double bass ; Clement Ruel, double bass ; William Boivin, double bass ; Nicholas Pura, double bass ; Léo Lanièce, double bass. Works: Schuller, Gunther. Quartet for Double Basses.; Saariaho, Kaija. Folia for Double Bass and Electronics.; Alm, Jan. Quartet for Double Basses, no. 2.; Zbinden, Julien-François. Homage to J. S. Bach, Op. 44 for Solo Double Bass.; Rautavaara, Einojuhani. Angel of Dusk, Concerto for Double Bass, Two Pianos, and Percussion.