Knappertsbusch: Wagner – Der Ring des Nibelungen, 1956 (13 CD box set, APE)March 16, 2020August 7, 2021
Knappertsbusch: Bruckner – Symphony no.8, Wagner – Siegfried Idyll, Lohengrin, Parsifal Preludes (2 CD, WV)March 16, 2020August 9, 2024
Klemperer, Ludwig, Wunderlich: Mahler – Das Lied Von Der Erde (LP, 24/192)March 15, 2020December 6, 2021
Klemperer: Haydn – Symphonies 88, 92, 95, 98, 100-102 & 104 (3 CD box set, APE)March 15, 2020June 24, 2020
Kertesz, Cliburn, Toscanini: Tchaikovsky – Piano Concerto no.1, Symphony no.6 (FLAC)March 15, 2020April 30, 2020
Katie & Marielle Labeque: Piano Fantasy, Music for Two Pianos (6 CD box set, FLAC)March 15, 2020April 29, 2020
