| 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 | Vanessa Redgrave |
| Elisabeth Schwarz | Mathias Hausmann | Julia Stemberger |
| Siobhan Stagg | Günter Haumer | Peter Uray |
| Ingrid Wendl | ||
| Mezzosoprano | Bass | |
| Caitlin Hulcup | Kevin Thompson | |
| Eva Maria Riedl | ||
| Stephanie Weiss | ||
