歌词是在频繁的羽管键琴伴奏下唱出来的。

The lyrics were spoken, frequently to the accompaniment of a harpsichord.

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不像之前的羽管键琴，如今的钢琴是一种打击乐器。

Now, unlike the harpsichord which came before it, the piano is a percussion instrument.

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其二，对于自己的很多作品，巴赫本人更喜欢在击弦古钢琴而非羽管键琴上演奏，因为前者提供了更多微妙的描明摹暗的可能。

The other is that Bach, given the choices available in his time, preferred many of his pieces to be played on the clavichord with its wider possibilities of subtle shading.

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