THURSDAY, MAY 16
HABITAT MANAGEMENT, Andover Conservation Commission presents guest speaker Russell Hopping, ecology program director for The Trustees of Reservations, speaking on “Habitat Management in the Andovers,” 6:30 p.m., Memorial Hall Library, 2 North Main St., third floor; sandwiches and refreshments followed by brief meeting and guest speaker; public welcome, call commissioner Kevin Porter, 978-470-0671.
TALKING POLITICS, Former Vermont governor and onetime presidential candidate Howard Dean, 7 p.m., Kemper Auditorium, Phillips Academy, 180 Main St.; free, www.andover.edu/Calendar/Pages/HowardDean2013.aspx.
FRIDAY, MAY 17
LIVE MUSIC, Academy Concert Bands and Ensembles under the direction of Vincent Monaco and Derek Jacoby, presented by Phillips Academy Music Department, 7:30 p.m., Cochran Chapel, 180 Main St.; 978-749-4260, email@example.com.
SATURDAY, MAY 18
ACTIVIST NOTES, Emma’s Revolution, duo of award-winning activist musicians Pat Humphries and Sandy O, with opener Meg Rayne of Newburyport; doors open 7:30 p.m., Universalist Unitarian Church, 16 Ashland St., Haverhill; tickets $20, $10 ages 18 and under; newmooncoffeehouse.org, 978-459-5134.
SUNDAY, MAY 19
PLANT SALE, North Andover Garden Club offers proven perennial plans from members’ gardens and annuals from Paisley’s in Boxford plus fresh produce from Gaouette Farm of North Andover, 10 a.m. to 2 p.m., Stevens Memorial Library front lawn, Main Street, North Andover, rain or shine; northandovergardenclub.com, or Lisa at 978/689-9318.
PIANO SHOWCASE, Concert featuring honors piano students from the Merrimack Valley Music Teachers Association, 2 p.m., Memorial Hall Library, 2 North Main St., Andover; registration requested; visit www.mhl.org/eventcalendar or call 978-623-8401, ext. 31 or 32.
ORCHESTRA CONCERT, Merrimack Valley Philharmonic Orchestra, resident orchestra at Rogers Center for the Arts, featuring pianist Yukiko Sekino, 2:30 p.m., Merrimack College, 315 Turnpike St. (Route 114), North Andover; adults $20, seniors and students $15, children ages 4 to 12 $5; mvpomusic.org.
MUSICAL HISTORY, music from the last 500 years performed by Northern Essex Community College Chorus, 2 p.m., Hartleb Technology Center, 100 Elliott St., Haverhill; admission $5; firstname.lastname@example.org.