u/Frosty-Mirror-7584

I was adding a bunch of songs to my favorites list today and at some point it stopped saving. I see the "Added to Saved Scores" confirmation, but when I refresh/go to the saved scores, it doesn't show as saved. Is there a cap to how many you can save in a certain period of time? It doesn't appear to be a total quantity cap because I unsaved a few and new ones still aren't able to be saved. I tried on both the desktop web version and the iOS app.

Firstly, I'm not here to talk about the scammy aspects. Just features.

I'm thinking of getting a Pro/Pro+ plan for one year so that I can mass download every non-official song I might want. I do like the side benefit of being able to view official scores and screenshot them for reference, but my main desire here is pieces that can be transposed/edited in the software.

I'm learning piano and planning to sing while I play, which is why I want them to be transposed to my vocal range, and edited to be a bit simpler. Is it pretty standard that the downloadable pieces can be transposed and edited? Or is it more uncommon?