More By Koris Maska / Choir Maska
- State Choir 'Latvija'
- Anna-Maria Hefele, Kammerchor I Vocalisti, Hans-Joachim Lustig, Ulrike Gerl, Stephanie Arden, Marianne Zabel, Heidi Becker & Michael Thomsen
- Youth Choir Kamer, Aivis Greters & Janis Liepins
- Portland State Chamber Choir & Ethan Sperry
- University of South Dakota Chamber Singers & David Holdhusen
- Coro Mixto & Javier Busto