因为很多流行音乐尤其是摇滚乐会在原位上添加这样的和弦，这样听起来会比较悦耳。
So because so much popular music and particularly rock music has those chords in root position we can track them more readily.
据发现，通常没有必要用数字标记原位主音和弦，如果要用数字标记的话，为53。
Generally it has been found unnecessary to use figuration for a tonic chord in root position, which, if expressed would be 53.
据发现，通常没有必要用数字标记原位主音和弦，如果要用数字标记的话，为53。
Generally it has been found unnecessary to use figuration for a tonic chord in root position, which, if expressed would be 53.
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