In the 1970s, Swedish pop group Abba replaced the Beatles as the world's most popular entertainers. They had extraordinary chart success, and their deceptively simple, slick (some would say bland) music, conceals their quite exceptional songwriting and production skills.
Formed in 1972, Abba included BennyAndersson (), keyboards and synthesizer; BjornUlvaeus (), guitar; AgnethaFaltskog (), vocals; and Frida —a single...