It’s four years since Frank Ocean’s last album, Channel Orange, and 13 months since he promised the follow-up, Boys Don’t Cry, would be released. On Friday, Apple is releasing perhaps the most anticipated album of 2016. In those past four years, beyond a handful of guest vocal appearances, an a capella track on Kanye West’s The Life of Pablo, a two-minute sketch of a song called Memrise and an appearance in a Calvin Klein ad, very little has been seen or heard of the artist.