There are two schools of thought when it comes to band legacies. The first being—once the original lineup is disbanded, the band is dead forever, its name included. The second being—as long as a founding member or two remain involved, as long as a spark of the band’s core identity somehow remains, the band can go on living and using its name. The Yardbirds are of the second school, and for the past few decades, drummer-composer Jim McCarty has led the blues-rock group that he co-founded in a way that maintains its awe-worthy history and simultaneously insists upon a perpetual newness. The same kind of newness that accompanied the Yardbirds’ nightly rave-ups during their early ‘60s Crawdaddy Club residency, once the Rolling Stones had outgrown the role.