贝多芬的秘密（七），奏鸣曲真的只有三十二首吗

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BGM 曲单：（谢谢）
1，Ludwig van Beethoven-Quartet No. 7 in F Major Op. 59,1 (Allegro)
2，Friedrich Gulda-Ludwig van Beethoven Piano Sonata No. 25 in G major ('Cuckoo') , Op. 79 - 3. Vivace
3，Friedrich Gulda-Ludwig van Beethoven Piano Sonata No. 32 in C minor, Op. 111 - 2. Allegro molto - Arietta. Adagio m