Twelfth Night--Loeb Drama Center, 8 pm
The Tooth of Crime--Loeb Ex, 7:30 p.m.
Slow Dance on the Killing Ground--Leverett House Old Library, 8 p.m.
Film Flam--Ropes-Gray Room, Roscoe Pound Bldg., HLS, 7 and 9:30 p.m.
Thymus Vulgaris, The Lady of the Tiger and Corner, 28th and Bank--Hasty Pudding Theater, 8 p.m.
All My Sons--Lyric Stage, 54 Charles St., Boston, 8 p.m.
Musical Evening--Constance Boykan, flute, and Cynthia Nibbelink, poetry; Peasant Stock Restaurant, 415 Washington St., Somerville,
Chamber Music of Bustenude and Purcall--Boston Museum Trlo and guests Nancy Armstrong, soprano, and Anthony Martin, baroque violin; Remis Auditoriu, Museum of Fine Arts, 8 p.m.
Sequantia--"Minstrels and Clerics of the Madieval North"; Church of the Covenant, Berkeley and Newbury Sts., Boston, 8:30 p.m.
Organ Recital--Edith Ho, organist; Memorial Church, 12:10 p.m.
Strutt--Oxford Ale House
Ralph Towner and John Abercromble--Jonathan Swift's, 8 and 10:30 p.m.
The Satellites and The Runes--Inn Square Men's Bar