[schnautza]

I guess in my mind, what makes the most sense would be to have a master synclist (combination of songlist and setlist) on the computer companion - you'd hit a SYNC button and it would scan the tablet that you are connected to to find any missing or modified files. It wold give you the option of replacing or renaming any matches, and it would leave the rest of your library alone on your tablet (for songs that aren't in the synclist).

Maybe this is already a real built-in functionality. But I haven't found it yet. If not, I guess this needs to go on a "new idea" thread.