Bass-Baritone: Bryn Terfel - Executive Producer: Martin T:son Engstroem - Producer: John Helyar - Piano: Llŷr Williams - Production Coordinator: Manuel Lopez - Recording Supervisor: Anna Barry - Production Coordinator: Johannes Gleim - Production Coordinator: Markus Kettner - Recording Engineer: Kali Son - Mastering Engineer: Ian Watson - Composer: Franz Schubert