프란츠 슈베르트Franz Schubert (1797-1828)즉흥곡 1번Impromptu 1 in C minor Op. 90, D. 899즉흥곡 2번Impromptu Nr. 2 in E flat major Op. 90, D 899즉흥곡 3번impromptu, No. 3 in G flat major (Andante) Op. 90, D. 899즉흥곡 4번Impromptu No.4 In A Flat Major (Allegretto) Op.90, D.899 그리고리 소콜로프Grigory Sokolov 피아노Recorded at the Berliner Philharmonie (Berlin, Germany) on June 5, 2013https://www.bilibili.com/video/BV1654y1Y7bh/?..