The controls should be fairly straightforward. In the editor interface, you tap to place notes, and drag to set length. You can set precise values in the tabs on the right side. There will be FILE, EDIT, and SETTINGS drop down menus for easy access. L and R will switch between up to three files which can be open at once. I'll add some help information somewhere too, just in case. Don't worry ;)
1そうだね プレイ済み