Just know that on the green side the 4th (and 8th) box it's supposed to be a D natural (7th measure), followed by D sharp (8th measure). It's just difficult for that to happen on here. If you find a way that'll be great.
The key signature is G Major. So I need F#. But the sheet music also occassionally adds a D#. None of the options allow that without sacrificing other notes I need. A full keyboard would have made this game a million times better. Sucks that you haven't updated this game in almost 5 years...