Roberto Frontali

Ulrich Eisenlohr (piano), Christian Elsner (tenor), Roman Trekel (baritone), Michael Volle (bass), Burkhard Kehring (piano), Johannes Kalpers (tenor), Olle Persson (baritone), Mats Jansson (piano), Ruth Ziesak (soprano), Peter Hill (piano), Lynda Russell (soprano), Eldar Nebolsin (piano), Jeno Jando...