Franz Schubert: 4 Impromptus / Piano piece in C Major / Adagio and Rondo Concertante 2007-01-22T00:00:00.000000Z
Schubert: 4 Impromptus, Op. 90, Allegretto D. 915, Ungarische Melodie D. 817 & Sonata D. 958 1970-01-01T00:00:00.000000Z
Sebastian Knauer (born in Hamburg in 1971) is a German classical pianist.