[Frank Cox]

I've really just started using MSP so I'm nothing like an expert, but my method for doing this is as follows.

I have all of my music sorted into various directories on my (Linux) computer, and I copy it from there to corresponding directories on my Android tablet.

So I have a directory structure that looks something like this:

sheet music/
sheet music/songbooks
sheet music/songbooks/movies
sheet music/songbooks/Frank Sinatra
sheet music/songbooks/Christmas

And so forth.

I set MSP so the database will be stored in a directory on my tablet that I can access and I just back that up to my computer as needed using rsync.

I create a csv file for each of my pdf's and import them into MSP that way.

Seems to work fine.  All of my music is stored both on my computer (from where it gets backed up along with all of my other data) and on my tablet, and the database files are stored on my computer too so if the tablet decides to die I think I'll be able to just get a new tablet, copy the music and the database from my computer and let 'er rip.  I haven't actually had any need to do that yet, but I don't see any obvious reason why it shouldn't work that way if the situation arises.