Wow, who stole the Crowes’ mojo? Producer Don Was is a good guess. For the band’s sixth album, Lions, vocalist Chris Robinson and crew get artier with their arrangements, but sacrifice the lived in feel of previous work. At least when they were continually rerecording ”That ’70s Album,” the music had an organic quality sorely missing from this harsh sounding disc. Is it possible for a retro band to go back in time to retrieve its mojo?