Polly Oliver, First Parish Music Director, and Charlie Anderson, First Parish member, will present a one-hour program of music for organ and organ with trumpet. Organ works include J.S. Bach’s Prelude and Fugue in b Minor, the Toccata from Charles-Marie Widor’s Symphony for Organ No. 5, and Jehan Alain’s Litanies. Works with trumpet include a Bach aria, a suite of Renaissance dances, and a piece by the Estonian composer Ester Mägi.