Boston-based saxophone group, the Pharos Quartet, performed with composer and pianist Thomas Weaver on Saturday in Marsh Chapel, that featured both reimagined classical pieces and newly commissioned contemporary pieces.

An indigo silhouette takes form on a canvas as the artist paints dash marks around the shape to staccato notes playing in the background. Two artists stand onstage — one faces the audience and holds a saxophone, the other faces away and wields a paintbrush.