Valse sentimentale, Op. 51, No. 6 - Tchaikovsky: Valse sentimentale, Op. 51, No. 6: Valse sentimentale, Op. 51, No. 6 (Valse sentimentale, Op.51, No.6: カンショウテキナワルツ|Valse sentimentale, Op.51, No.6: 感傷的なワルツ)