Ken Tucker

"Pink Champagne," a song on Caitlin Rose's second album The Stand-In, presents Rose's voice in its sparest purity and veiled shrewdness. She sends her voice skyward, the notes as buoyant and light as the bubbles of the pink champagne she's singing about. Her high trills could, with only a slight shift in tone and attitude, become self-conscious with a Betty Boop coyness, as they do once or twice on The Stand-In. But most of the time, Rose keeps her music grounded in the details of yearning, heartache and a welcome sense of gratefulness and enthused energy.

Kacey Musgraves is something of an anomaly. A Texas native in her mid-20s, she fits most easily into the contemporary "country" category, but the work she co-writes with a variety of collaborators is really a throwback to an earlier era of singer-songwriters — as much influenced by rock and folk as by country.

The orchestral swirls, the transition to a soul-man groove, the falsetto croon — there you have some of the key elements to Justin Timberlake's album The 20/20 Experience. The title implies a certain clarity of vision, even as any given song presents the singer as a starry-eyed romantic, bedazzled by a woman upon whom he cannot heap enough compliments, come-ons and seductive playfulness.

Delicate phrasing, with both voice and guitar, has always made Richard Thompson a musician worth hearing — and sometimes even liking on a personal level. For a man who can make such pretty music, it's to his credit that he prefers to show his thorny, stubborn, cranky, even mean side in many of the songs in his solo career.

"Telescope," the fictional hit single by the fictional country star Juliette Barnes on Nashville, is sung by the actress who plays Juliette, Hayden Panetierre. If it didn't become a real-life hit when the song was released a few months ago to country radio stations, it wasn't for lack of catchiness, courtesy of producers T-Bone Burnett and Buddy Miller.

Ke$ha uses a dollar-sign instead of an "s" in the middle of her stage name. It's one of those gestures that's meant to bait her detractors — suggesting before anyone else does that she's only in it for the money. It turns out, though, that like pop stars ranging from Madonna on back to Chuck Berry, Ke$ha wants it both ways: mass-audience success and artistic acknowledgment. For Ke$ha, that's what her album title Warrior means: She's fighting a war on multiple fronts.