Pianist and singer Leslie Sanazaro has performed with local act Polaris and continues to sing regularly with So Say We All, but recently she has spent time honing her solo act. Last year she released Stars in the Attic, a disc that is relaxed, slightly jazzy and thoroughly adult. The temptation with young female piano players is to over-play and over-sing, and it is to Sanazaro's credit that she does neither on Stars; the album is uncluttered and neatly ordered, with big, open piano chords leaving room for her nimble, octave-spanning voice. When Sanazaro returns home this week, it will be toward the end of her month-long journey with the Green Light Tour, a trek that groups three up-and-coming singer-songwriters under the banner of global-warming awareness. Sanazaro performs with Nashville's Jen Woodhouse and Austin's Todd Sapio.