Primary seventh-chord正七和弦
seventh h chord七和弦
diminished seventh chord减七和弦;减七以及弦;减七
diminished d seventh chord减七和弦
Seventh chord and increase七和弦及增
dominant seventh chord属七和弦;属七以及弦;属七
Dominant Seventh chord pattern属七和弦模式
Minor Seventh Chord小七和弦
Major Seventh Chord七和弦
N（名词） a chord consisting of a triad with a seventh added above the root 七和音 [music]→see dominant seventh chord, diminished seventh chord, major seventh chord, minor seventh chord