Austin City Limits Music Festival 2009! Last year's ACL was a blast. What a fantastic event! Great musicians...what a lineup ACL 2009 had! The ACL Music Fest took place in October for the first time due to increased chance of rain, and the reduced chance of booking bands on summer tour said to be due to the UT football weekends. But something as great as ACL 2009, lineup that amazing, could only happen in Austin, Texas- such organized chaos with the rain and relentless mud!