By Whitney Pastorek
Updated November 12, 2004 at 05:00 AM EST

Enlisting the help of producer/boyfriend Stephan Jenkins (of Third Eye Blind), the 24-year-old Vanessa Carlton is trying to show us that she’s matured since 2001’s Be Not Nobody. Singing about unicorns in ”Half a Week Before the Winter” does not help her cause. Amid the dippy Dear Diary lyrics and gratuitous string sections, however, there are a few treasures on Harmonium: ”Afterglow,” ”Papa,” and the catchy single ”White Houses” suggest Carlton’s melodies might stand a chance on their own.