Andy Powell says Wishbone Ash are getting “lots of younger fans coming to the shows now.” Then he chuckles and admits that by younger fans he means “people now in their fifties”.

Guitarist Powell, 74, co-founded the English rock band in 1969 and is the only original member left. Their chart-topping 1972 masterpiece, Argus, turned them into stars.

“Wishbone Ash has become almost like a religion to me,” he says, speaking from his home in Redding, Connecticut, where he has lived with…