Having gotten country out of his system with Almost Blue, Elvis Costello returned to pop music with Imperial Bedroom -- and it was pop in the classic, Tin Pan Alley sense. Costello chose to hire Geoff Emerick, who engineered all of the Beatles' most ambitious records, to produce Imperial Bedroom, which indicates what it sounds like -- it's traditional pop with a post-Sgt. Pepper production. Essentially, the songs on Imperial Bedroom are an extension of Costello's jazz and pop infatuations on Trust. Costello's music is complex and intricate, yet it flows so smoothly, it's easy to miss the bitter, brutal lyrics. The interweaving layers of "Beyond Belief" and the whirlwind intro are the most overtly dark sounds on the record, with most of the album given over to the orchestrated, melancholy torch songs and pop singles. Never once do Costello & the Attractions deliver a rock & roll song -- the album is all about sonic detail, from the accordion on "The Long Honeymoon" to the lilting strings on "Town Cryer." Of course, the detail and the ornate arrangements immediately peg Imperial Bedroom as Costello's most ambitious album, but that doesn't mean it's his absolute masterpiece. Imperial Bedroom remains one of Costello's essential records because it is the culmination of his ambitions and desires -- it's where he proves that he can play with the big boys, both as a songwriter and a record-maker. It may not have been a commercial blockbuster, but it certainly earned the respect of legions of musicians and critics who would have previously disdained such a punk rocker. And, perhaps, that's also the reason that he abandoned this immaculately crafted style of work on his next album, Punch the Clock.