1.0
기본기 4 (2박자 간격 첫 어택 연습)
rich
800
400
<iframe src="https://flat.io/embed/69f5bfc14faf44a88e7966f2" allowfullscreen height="400" width="800" frameBorder="0"></iframe>
3229028675713208
https://flat.io/3229028675713208
Flat
https://flat.io
https://flat.io/api/v2/scores/69f5bfc14faf44a88e7966f2/revisions/last/thumbnail.png?noRedirect=true