One of the great regrets of my musical fandom is never seeing the late Tom Petty and his band, the Heartbreakers. His guitarist — Mike Campbell, who co-wrote many of his songs (as well as “The Boys of Summer” with Don Henley) — now leads his own band, The Dirty Knobs, who similarly play straightforward rock ‘n’ roll. (Campbell even sounds a bit like Petty, sharing his nasal singing delivery, which has been described as like Bob Dylan, but in key, and his north Florida accent.)

In their recent appearance at the Warner Theatre, Mike Campbell & The Dirty Knobs treated the audience to a night of originals peppered with a number of deep Petty cuts and classic covers.