[paltieldav]

Sounds like an exciting project! I think the Amazon Fire 10 is a solid pick—it's lightweight, affordable, and should work well with chordpro. For updating the tablets, I’d recommend setting up a Wi-Fi hotspot at practice. It makes it easier for everyone to sync their files quickly, and it’s a bit of a hassle if they have to remember to update at home. Sharing one Amazon account could simplify things, too, especially since you’re all using the same library. As for scanning the library, I’d suggest getting a good chunk done beforehand.