Join the Cappella Cantorum Masterworks Chorus for registration and first rehearsal of Mendelssohn’s “Elijah” on Monday, Jan. 7, 7 p.m., at John Winthrop Middle School, 1 Winthrop Road, Deep River (use rear entrance). The lyricism and use of orchestral and choral color in “Elijah” reflect Mendelssohn's genius as an early Romantic composer. This inspiring work will be performed in concert Sunday, April 14, at John Winthrop with professional orchestra and soloists. Simon Holt of the Salt Marsh Opera will direct. All singers and high school students are welcome; auditions are not required. Registration is $50 plus cost of music. Late registration is the following Monday, Jan. 14, same time and place. Singers may register on-line or in person at John Winthrop. For more information visit www.CappellaCantorum.org or call 860-526-1038.