弦 2008-7-1 09:33
钢琴音准培养根本性piano pitch ...
[size=12px]piano pitch raise fundamentals[color=#ffffff]c^pch?[/color]
[url=http://hk.youtube.com/watch?v=9bijFBvRMkI][color=#800080]http://hk.youtube.com/watch?v=9bijFBvRMkI[/color][/url][color=#ffffff]N[/color]
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