Variations on a Theme by Haydn, Op. 56a - Variation II: Più vivace (Brahms: Variation II: Piu vivace [Variations on a Theme by Haydn, Op.56a]|Ｂｒａｈｍｓ：　Ｖａｒｉａｔｉｏｎ　ＩＩ：　Ｐｉｕ　ｖｉｖａｃｅ　［Ｖａｒｉａｔｉｏｎｓ　ｏｎ　ａ　Ｔｈｅｍｅ　ｂｙ　Ｈａｙｄｎ，　Ｏｐ．５６ａ］)