Chords和弦

Everything built on each of the twelve roots, gathered a root to a sheet: the three triads and all five sevenths, a page each. Root position and every inversion, on the staff and under the hand.十二个根音上的全部和弦，一个根音一份乐谱：三种三和弦与五种七和弦，每种一页。原位与各转位均有，五线谱与键盘指法对照。