“Whether you like it or not, everyone has heard ‘Dancing Queen’ at least once,” says Christian Fast. The lead guitarist for ABBA The Concert, an ABBA tribute act, has no reason to doubt that fact.

Peter Brennan, of the London-based Jeans 'n Classics, said he understands the pairing might seem odd to even studied pop music aficionados. However, once Brennan probed deeply into the Swedish pop ...