Last night’s Life Is a Carnival: A Musical Celebration of Robbie Robertson found Eric Clapton, Van Morrison and others paying tribute to the late Band songwriter and guitarist. See videos and a complete look at the four sets of songs, which included material from the Band, Robertson’s solo career and other favorites. Clapton played the entire third set, with “The Shape I’m In” as a highlight. The bill at the Kia Forum in Los Angeles also included Elvis Costello, Warren Haynes, Mike Campbell, Bruce Hornsby, Don Was and Bobby Weir. Several of these performers will now take the show on the road, …