Sonata No. 1 In E-Flat Major, BWV 525 - J.S. Bach: Sonata No. 1 In E-Flat Major, BWV 525: 1. — (베토벤: 소나타 1번 내림 마장조: 1. —|Sonata No.1 In E-Flat Major, BWV 525: １|トリオ・ソナタ 第1番 変ホ長調 BWV525: 第1楽章: ALLEGRO MODERATO)