Severin Böhm, Tenor - 2025, 2026
Roxana Constantinescu, Mezzo-Soprano - 2025, 2026
Claire Elizabeth Craig, Soprano - 2026

Neven Crnić, Baritone - 2025, 2026
Nina-Maria Fischer, Soprano - 2018

Frieder Flesch, Baritone - 2024

Georg Gädker, Baritone - 2025

Henriette Gödde, Alto - 2025, 2026

Patrick Grahl, Tenor - 2023
Mathias Hausmann, Baritone - 2026

Klaus Häger, Baritone - 2023

Katrin Heles, Alto - 2018

Theresa Holzhauser, Alto - 2018

Rahel Indermaur, Soprano - 2018

Tohru Iguchi, Baritone - 2018

Daniel Johannsen, Tenor - 2025, 2026

Adam Juran, Tenor - 2018

Hitomi Kawai, Mezzo-Soprano - 2018
André Khamasmie, Tenor - 2026
Philipp Kranjc, Bass - 2018

Cathrin Lange, Soprano - 2025, 2026
Mario Lerchenberger, Tenor - 2025, 2026

Matthias Lika, Baritone - 2025

Maximilian Lika, Baritone - 2007, 2009, 2017, 2019, 2023, 2024, 2025

Peter Lika, Bass - 2008

Antoni Lliteres, Tenor - 2018

Electra Lochhead, Soprano - 2018

Ulrike Malotta, Mezzo-Soprano - 2023, 2024, 2025

Ricardo Marinello, Tenor - 2018
Jonathan Michie, Baritone - 2025
Daniel Ochoa, Baritone - 2024, 2025, 2026

Roman Payer, Tenor - 2025

Nicole Pieper, Alto - 2025

Georg Poplutz, Tenor - 2025

Andreas Post, Tenor - 2025

Yvonne Prentki, Soprano - 2018
Chen Reiss, Soprano - 2023

Aleksander Rewinski, Tenor - 2018

Philipp Schöllhorn, Bass - 2025

Sung Min Song, Tenor - 2026
Alexandra Steiner, Soprano - 2018, 2024
Alexander Yudenkov, Tenor - 2018