前奏曲的几个主要特征(typical features of a Prelude)

乐器音乐（instrumental composition)

即兴风格(improvisatory style)

重点围绕着一个单一的动机建立(built extensively around a single motif)

序列模仿(sequential patterns)

较长的持续音（Long dominant(pedal point))

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J.S.Bach : Kleine Praludium in C BWV 924