This is a simple and clear music pad, It include 4 types keyboard : Piano 12 keys, Piano 21 keys, Piano Chord-C 6 keys, and a lovely African drum.
It using numbered musical notation.
1=>C, 2=>D, 3=>E, 4=>F, 5=>G, 6=>A, 7=>B
add the color key
9Apps 4.9
![국세청 홈택스 [손택스] on 9Apps](https://go.getnew.app/sg/res/jpg/f7/df/69cc2f90120ec331db2630e0f5b6-6dh.jpg?x-oss-process=style/jmq200)
