The “Tapestry Of Sounds” program is 35th anniversary celebration featuring Schubert, Mendelssohn and Vivaldi alongside jazz and pop arrangements and folk music from Haiti, augmented in the second half by fifty or so of the group’s alums. Guest performers include a cappella group The Virginia Belles and a group called Noteworthy performing “Hide and Seek”, the awesomely twisted contrapuntal Imogen Heap solo vocal piece which was regrettably more successfully introduced to the world via Andy Samberg’s SNL mockery and Jason DeRulo’s sample-jacking than through more appropriate presentations like this one.