Thanks for making this game! Here's a little song I managed to play with this.
Home - Undertale
F-J-H-F-G-G-H
F-H-F-G-G-H
F-J-H-F-G-G-H
F-H-L-K-J-K-(J)
(): means optional. I added an ending to it, so there is an optional note there.
Hope you enjoy it!