AFAIK there are a number of libraries to transform sheets into MusicXML, not sure how well they work, but what you say makes sense initially. That said:
iPad only might be very limiting, most people doesn't have one.
Play along a music sheet has been done already; not sure if that is the end goal, or just a learning project (which is fine), but if you want a chance at capturing interest I think you need to offer something more.
For inspiration / reference, Adrian Holovaty's Soundslice is pretty great: www.soundslice.com/
AFAIK there are a number of libraries to transform sheets into MusicXML, not sure how well they work, but what you say makes sense initially. That said:
For inspiration / reference, Adrian Holovaty's Soundslice is pretty great: www.soundslice.com/
The reference is great. Trying to build something like this. I guess I can make a webapp and turn it into a PWA or use it in WebView for native apps.