Can anyone tell me what the short form of the piano chord in A minor is? Thanks!

Sketch of the a (harmonic) minor scale (6 = a), 6, 7, (soprano) 1, 2, 3, 4, #5, 6. Generally used is the Ⅰ Ⅳ Ⅴ chord, the sketch: 613, 246, 357.

It is the main triad: 6, (soprano) 1, 3, the upper main triad is 7, (soprano) 2, 4, middle triad 1, 3, #5, lower middle triad 4, 6, (soprano) 1, the genitive triad is 3, #5, 7; the genitive seventh chord is 3, #5, 7, (soprano) 2, the subordinate triad is 2, 4, 6, and the leading triad is #5, 7, (soprano) 2.

Expanded:

I. The body should sit upright but not stiffly in the center of the keyboard, with the upper body tilted slightly forward, but the spine should not be bent, and the back and shoulders should be loose but not collapsed.

Second, hands on the keyboard to make the height of the elbows and forearms with the keyboard, the beginning of the children can also be slightly above the keyboard, in order to experience the use of arm weight.

Three, sitting distance above the body in a slightly forward leaning, shoulders naturally drooping, left and right elbows naturally relaxed slightly to the outside of the body to expand, hands can be comfortably placed on the keyboard degree: the lower body should pay attention to the thigh root to the knee should be a slightly sloping makeup tilt, Tenggai's position in the piano side of the bottom, the knee bend to the heel is not less than a right angle, the feet slightly forward to the pendulum stabilization.