He made waves by coming out shortly before his debut album did, but Frank Ocean’s sexuality isn’t the big story about him. He’s an extraordinary singer-songwriter, an R&B original who made his reputation with a mixtape (last year’s Nostalgia, Ultra), and whose album heralds a unique sound. There are hints of Prince and Elton John here, as well as guest appearances by John Mayer and underground rap collective Odd Future’s Earl Sweatshirt and a 10-minute suite that conflates Cleopatra with a contemporary stripper. Mostly, though, Channel Orange is about Ocean’s singing and narrative voice: both are supple and sly, and never quite say everything they know.