和弦

Artistic shot of hands playing piano keys with a music sheet in the background.

和弦的原位与转位

和弦原位与转位的定义、三和弦的转位、七和弦的转位

Artistic shot of hands playing piano keys with a music sheet in the background.

七和弦

七和弦定义、类型、构建规则

Artistic shot of hands playing piano keys with a music sheet in the background.

三和弦

三和弦定义、类型、构成规则