Prior to attending a festival, I generally go to setlist.fm and put together playlists based on the most commonly appearing songs, and it usually prepares me well for artists I'm unfamiliar with.
Is there a thread that features likely setlists of Coachella acts? I couldn't find one using search.... if not, I'll post a few of the bands I'm looking forward to here.
Note: Since we don't know set times, it's best to be a little over-inclusive... 12-15 songs per lower-listed band... 18-24 for sub-headliners and above, or something along those lines. Maybe more for headliners who play long shows.
Also Note: If these bands have new albums drop prior to Coachella, the setlists could be wildly variant, with the new material dominating.