The Washington Bach Consort's season finale celebrates Easter and draws from four distinct areas of Bach's incomparable creative genius, including Toccata, Adagio and Fugue in C Major, Orchestral Suite No. 4 in D Major, Motet: Signet dem Herr nein neues Lied and the Easter Oratio. Sunday, May 1, at 3 p.m. National Presbyterian Church, 4101 Nebraska Ave. NW. Tickets are $65. Call 202-429-2121 or visit bachconsort.org.