The manuscript of Bach's Cello suites by Johann Sebastian Bach did not survive.

The most important source for this music is the one copied

by his wife Anna Magdalena Bach.

巴哈大提琴組曲的親筆稿並沒有留下來，這份巴哈太太 Anna Magdalena Bach 的手稿，是幾份流傳下來的手稿中最重要的，注意觀察，當中紅色標記的小節

measure 32 has an extra half

bar in Anna Magdalena

Bach's manuscipt. let's listen to it.

巴哈太太在32小節多了半小節。比較兩個版本的譜，

然後欣賞照Anna Magdalena 的抄本所演奏的錄音

Both recordings were played by M.

Rostropovich, the one without extra measure was

from his EMI recording's CD version, and the one

contained extra measure was taken from DVD.

Why he played it differently?

兩個版本都是羅斯托波維奇在EMI的錄音，沒有額
外半小節的版本來自CD，有多額外音符的來自
DVD。為何同一份錄音要分成不同內容？