Singer-songwriter Randi Boulton sings while playing the Ross Street public piano Wednesday. Steve Woolrich donated the piano last year, the first summer it was available to play to any passerby, and this year had artist Amy Braun paint it with trees and a vibrant purple to match its location outside Thai Garden Restaurant. Boulton was later joined by bassist Carl Stretton and guitarist Payton Cameron and the trio performed for lunch hour strollers.