Since U Been Gone - Composition

Composition

"Since U Been Gone" was written and produced by Max Martin and Dr. Luke. The song, which is set in common time with a moderate tempo of 132 beats per minute, is written in the key of G major. Popdose staff noted that the song contains "electronics-enhanced sheen" which infuses an appropriate dichotomy between the loud and soft sound of alternative-rock. The song also incorporates ringing guitars with plaintive lyrics and a huge chorus. It has a chord progression of AM–EM–F and Clarkson's vocal range in the song spans two octaves from the low note of G₃ to the high note of G₅. Film Laureate of Blogcritics praised "Since U Been Gone" for its "high energy, vocally powered, pop/rock jam with a hook that is infectious." The same opinion was echoed by Entertainment Weekly staff who thought that the song highlighted Clarkson's "sublime" vocals and praised the song for its "addictive" hook. Dave Donnelly of Sputnikmusic compared the musical arrangements of "Since U Been Gone" to Clarkson's "Behind These Hazel Eyes". He opined that the two songs allow the melodies to represent themselves because the tight musical arrangements complement Clarkson's vocals.

The song's narrative is in first person, from the point of view of a woman who is relieved with the end of her relationship. Steve Lampiris of ZME Music lauded Clarkson's vocals as the heart of the song. He praised the way Clarkson sings the chorus, which implies that she was the one who ended the relationship. He also thought that the line "I can breathe for the first time/ I’m so moving on, yeah yeah" was believable "that either her ex is a total prick or she's deserves an Oscar nom." In an interview with Dan Snierson of Entertainment Weekly, it was noted that Clarkson sang "So together but so broken up inside/ 'Cause I can't breathe" in "Behind These Hazel Eyes" but in "Since U Been Gone", she sang "But since you been gone/ I can breathe for the first time." When asked whether she was a bipolar asthmatic, Clarkson responded that "Behind These Hazel Eyes" is about a dipstick who is unhappy because he has completely screwed up and "Since U Been Gone" is an expression of relief because he is now miserable.