Leonard Ratzlaff, Hugo Wolf, University of Alberta Madrigal Singers
Jan 1, 1999
Leonard Ratzlaff, Gavin Bryars, Stillman Matheson, Roger Admiral, University of Alberta Madrigal Singers
Jan 1, 2001
Leonard Ratzlaff, Jolaine Kerley, Laurier Fagnan, John Brough, Chris Giffen, Trond Kverno, Tim Shantz, University of Alberta Madrigal Singers
Leonard Ratzlaff, Jonathan Dove, University of Alberta Madrigal Singers
Jan 1, 2004
Albert Tiu, Johannes Brahms
Jan 1, 2002
Claude Debussy, Alessandra Maria Ammara
Jan 1, 2003
Artist
55 Collabs
Artist, Musician
43 Collabs
35 Collabs
Songwriter
23 Collabs
Artist, Songwriter