Queen: Freddie Mercury (vocals, piano); Brian May (guitar, harp, ukulele, vocals); John Deacon (acoustic & electric basses, electric piano); Roger Taylor (percussion, vocals). Though they began their career practicing an artier, more theatrical variant on the Led Zeppelin heavy rock sound, Queen was always capable of much more. Ultimately, Freddie and the boys were popsters at heart, and capable ones to boot. A NIGHT AT THE OPERA is where they begin to show their eclecticism and compositional facility. The album title is probably a reference to the FM rock anthem "Bohemian Rhapsody," which begins as an existential ballad before moving into a mock-operatic section featuring scores of overdubbed Freddie Mercurys. "Rhapsody" is just the tip of the iceberg here. "Lazing on a Sunday Afternoon" is a music hall ditty that owes a debt to the Kinks. "'39" is a surprisingly poignant folk-rocker written and sung by Brian May. "You're My Best Friend" is pure '70s AM melodic pop. Queen even ventures into vaudeville territory (given Mercury's show biz leanings, not as much of a stretch as one might think) on the fatalistic, old-timey "Good Company." There are several souped-up rockers here as well, but it's A NIGHT AT THE OPERA's winning stylistic experimentation that makes it a milestone in Queen history.