Waltz in G-Flat Major, Op. 70 No. 1 - Waltz in G-Flat Major, Op. Posth. 70 No. 1 (Live) (降G大调圆舞曲，Op. 70 No. 1 - 降G大调圆舞曲，Op. Posth. 70 No. 1（现场版）)