Correct

音阶

/ yīnjiē / 
Strokes

Definition

musical scale

Example

As a Noun

gamut; (musical) scale

1
Shùnzhāo
顺着
yīnjiē
音阶
chàng
唱

sing up the scale

2
Dà
大
  
/
bàn
半
  
/
quányīnjiē
全音阶

major/chromatic/diatonic scale