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Beethoven, Backhaus, Vienna Philharmonic Orchestra, Hans Schmidt-Isserstedt – Piano Concerto No.1 / Piano Concerto No.2 (1959, Vinyl) - Discogs
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Beethoven – Concerto No. 1 in C Major, Op. 15 - Music Minus One Piano - Music Minus One | Hal Leonard
Ludwig van Beethoven, Piano Concerto No. 1 in C Major, Opus 15, First Movement Cadenza Sheet music for Piano (Solo) | Musescore.com
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