The 4th Annual Harvard Music Festival will begin on Sunday, June 20 at 7:30 p.m. with an online reception featuring the Festival's co-directors: violinist Judith Eissenberg, pianist Judith Gordon and cellist Rhonda Rider. Enjoy a micro-concert of music for trio by Joseph Haydn, Astor Piazzolla, and a mesmerizing new work by celebrated Indian-American composer Reena …