Though best known for its definitive box sets spanning careers or large swaths of them, Germany’s historically-minded Bear Family label also keeps busy with a steady flow of single-disc anthologies, all with the label’s hallmarks of quality. Three such anthologies have recently arrived from Bear Family, two focusing on The Everly Brothers and one on Paul Anka. Brothers Don and Phil Everly successfully straddled the line between country and rock-and-roll (with a healthy dollop of R&B in