Complex sentence: Coachella was expanded to a third day in 2007 and eventually a second weekend in 2012; it is currently held on consecutive three-day weekends in April, with each weekend having identical lineups.
Split into simpler sentences: Coachella was expanded to a third day in 2007 and eventually a second weekend in 2012. It is currently held on consecutive three-day weekends in April, with each weekend having identical lineups.