https://www.youtube.com/watch?v=FUob2dcQTWA 观看更多Ariel Quartet的贝多芬弦乐四重奏演奏: https://www.youtube.com/playlist?list=PL4Q0POsZDQK-esovu9yVkAuBjQOxg9LUS Beethoven: Quartet in A minor, Op. 132 Assai sostenuto – Allegro Allegro ma non tanto Molto Adagio – Andant