The Three Sisters. By Anton Chekhov. Loeb Drama Center, 64 Brattle St., 8 p.m. Tickets are available at the Loeb Center Box Office. Call 547-8300 for more information.

Patience. The Harvard-Radcliffe Gilbert & Sullivan Players. Agassiz Theater, 8 p.m. See previous listing for more details. 8 April Saturday

Concert

H.A.R.M.O.N.Y. Musical Open House and lnstrument Drive. come drop off old music and musical instruments and listen to some great music free at Winthrop House from 12 to 4 p.m. Call 493-3271 or 493-2348 for more information

Film

Harvard Film Archive. Carpenter Center for the Visual Arts. 24 Quincy St. 495-4700. $5 for students, unless a special event. "Caro Diario" at 3 p.m. and 7 p.m. "A Nos Amours" at 9 p.m.

Theatre

The Three Sisters. By Anton Chekhov. Loeb Drama Center, 64 Brattle St., 8 p.m. Tickets are available at the Loeb Center Box Office. Call 547-8300 for more information.

Patience. The Gilbert & Sullivan Players. Agassiz Theater, 2 p.m., 8 p.m. See previous listing for more details.

Film

Harvard Film Archive. Carpenter Centerfor the Visual Arts. 24 Quincy St. 495-4700. $5for students, unless a special event. "CaroDiario" at 3 p.m. and 7 p.m. "Querelle" at 9 p.m.

Theatre

The Three Sisters. Anton Chekhov. LoebDrama Center, 64 Brattle St., 8 p.m. Tickets areavailable at the Loeb Center Box Office. call547-8300 for more information.

Patience. See previous listing fordetails.10 April Monday

Talk