| Soprano | Tenor | Conductors |
| Sabina Cvilak | Johannes Chum | Mario Dobernig |
| Alexandra Flood | Aldo Di Toro | Israel Gursky |
| Theresa Grabner | Marlin Miller | |
| Lori Guilbeau | Reciters | |
| Ana Maria Labin | Baritone | Christa Ludwig |
| Siphiwe McKenzie | Paul Armin Edelmann | Karl Markovics |
| Elisabeth Schwarz | Mathias Hausmann | Vanessa Redgrave |
| Siobhan Stagg | Günter Haumer | Julia Stemberger |
| Peter Uray | ||
| Mezzosoprano | Bass | Ingrid Wendl |
| Caitlin Hulcup | Kevin Thompson | |
| Eva Maria Riedl | Kenneth Kellogg | |
| Stephanie Weiss | ||
