For 35 years, Donnie “Mr. Downchild” Walsh has led his Toronto blues band, weathering members’ deaths (including his brother Richard “Hock” Walsh’s) and pop’s ever-shifting winds. It’s a sterling track record. Having inspired the famous Blues Brothers, Walsh easily could rest on his laurels. But his band’s 14th album finds him still cranking out fresh, full-blooded blues originals like “Sad Sad Day” and “Tonight I Want to Dance with You,” joined by guests James Cotton and Jeff Healey. An inimitable institution.