With "Love & Circumstance" (4/13/2010 street release, Ninth Street Opus) Carrie Rodriguez demonstrates (if you weren't already convinced by her spectacular sophomore album, "She Ain't Me") that she has fully matured into a confident and commanding solo artist, in spite of (or perhaps, because of) the fact that the new album consists entirely of covers. Like Emmylou Harris with her 1995 masterpiece, "Wrecking Ball," Carrie mines and polishes gems of other songwriters, delivering them in her own unique style.