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[例1]
(a)Beethoven:Sonata No.3 in C major,Op.2 No.3,I(第1~2小节)
![figure_0017_0001](https://epubservercos.yuewen.com/4E862C/18218327008616706/epubprivate/OEBPS/Images/figure_0017_0001.jpg?sign=1739173827-eva9k4gnhGCuRA3YGq5E8fcCsWQxnikg-0-d0a811938061e626c9ae40a5b18e1168)
(b)Beethoven:Sonata No.1 in f minor,Op.2 No.1,Ⅰ(第1~2小节)
![figure_0018_0002](https://epubservercos.yuewen.com/4E862C/18218327008616706/epubprivate/OEBPS/Images/figure_0018_0002.jpg?sign=1739173827-amhROT2ymQ4E21UTCLnOmpLWa9TOi27w-0-d30e6eed37cef9ceae9ffef1806822cd)
(c)Beethoven:Sonata No.16 in G major,Op.31 No.1,Ⅱ(第1~2小节)
![figure_0018_0003](https://epubservercos.yuewen.com/4E862C/18218327008616706/epubprivate/OEBPS/Images/figure_0018_0003.jpg?sign=1739173827-olOw1eTjznB4FMqEFy9VJKi5Z98DE2wL-0-2dcbdc7cb6f3e901b251ba6206693a68)
(d)Beethoven:Sonata No.5 in c minor,Op.10 No.1,Ⅰ(第1~4小节)
![figure_0018_0004](https://epubservercos.yuewen.com/4E862C/18218327008616706/epubprivate/OEBPS/Images/figure_0018_0004.jpg?sign=1739173827-1FsO7ywANFa7qR34cAZmRVL94NU3mpmj-0-5712afcd9099fadc025e848095a827e2)
上面这个短句,由于速度快,是由四个小节构成的。我们也可将它设想成两个小节等于一个小节。
(e)Beethoven:Sonata No.8 in c minor,Op.13,Ⅰ(第1小节)
![figure_0018_0005](https://epubservercos.yuewen.com/4E862C/18218327008616706/epubprivate/OEBPS/Images/figure_0018_0005.jpg?sign=1739173827-xMECtMXS7ZOWtZkE24pbYlVrFGAvMBSn-0-6ef8b4c6e5b00e5422097c43a7c31f34)
这个短句,由于速度慢,只由1个小节构成。我们也可将它设想成两个单位拍等于1个小节。