Sunday, April 23

Earth Week Fresh Pond cleanup from 11 a.m. to 1 p.m. starting at 250 Fresh Pond Parkway, in West Cambridge at Fresh Pond. Gloves and bags will be provided as a ranger-led walk cleans land important not just to wildlife, but to our drinking water supply. Information is here.

Plant Parent Swap and Shop from 11 a.m. to 5 p.m. at Arts at the Armory, 191 Highland Ave., Somerville. Free. There’s an anonymous plant swap table, vendors and raffle baskets. Information is here.

Hassle Flea from 12:30 to 6:30 p.m. at the Cambridge Community Center, 5 Callender St., Riverside. Admission is $1. A flea market featuring handmade artwork, prints, patches, records, tees, pins, ceramics, jewelry, zines, body care, tea, fiber art, vintage clothing, accessories, books as well as tarot readings, haircuts and live drawings. Masks are requested. Information is here.

De Falla’s “El Amor Brujo” and Piazzola’s “Maria de Buenos Aires” at 3 p.m. at the Longy School of Music, 27 Garden St., Harvard Square. Free, with registration required and donations of $10 or up welcomed. De Falla’s fiery ballet suite and Piazzolla’s surrealist tango opera examine how the most vulnerable women in society face and deal with adversity. This production features student singers and Orchestra Flex as directed by Christopher Sierra and conducted by Ryan Turner. Information is here.

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Monday, April 24

Read It! Watch It! Book & Movie Group from 6 to 9 p.m. at the Cambridge Main Library, 449 Broadway, Mid-Cambridge. Free. This series continues with “In the Time of the Butterflies” by Julia Alvarez, historical fiction about sisters during a dictatorship in the Dominican Republic. (Copies of books in the series are available at the library.) It became a 2001 television movie starring Salma Hayek and Edward James Olmos. Information is here.

Julia Argy reads from “The One: A Novel” at 7 p.m. at Harvard Book Store, 1256 Massachusetts Ave., Harvard Square. Free. An examination of love and desire in the world of a reality TV dating show. Argy will be in conversation with Jane Roper, author of “The Society of Shame.” Well-fitting masks are required. Information is here.

“Oil and Sugar” by Ensemble Uncaged at 8 p.m. at the Longy School of Music, 27 Garden St., Harvard Square. Free, with donations up to $20 accepted. A celebration of new and recent chamber music from around the world, from Russian modernist Sofia Gubaidulina to local composer Marti Epstein, with the eponymous “Oil and Sugar.” Andy Kozar and Rachel Elliott are co-directors of this new group with a mission of eclecticism. Information is here.

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Tuesday, April 25

The Moth Story Slam from 6:30 to 9:30 p.m. at Arts at the Armory, 191 Highland Ave., Somerville. $15. This monthly open-mic storytelling competition is open to anyone who can share a five-minute story on the night’s theme – this time, “Rain,” in which participants explore: “ruined plans and unexpected joys. Getting drenched and making all efforts to stay dry. Itsy-bitsy spiders and old men who can’t get up in the morning.” Information is here.

Katy Kelleher reads from “The Ugly History of Beautiful Things: Essays on Desire and Consumption” at 7 p.m. at Porter Square Books, 25 White St., Porter Square. Free. The home, garden and design expert blends science, history and memoir to uncover the dark underbellies of favorite goods, starting with crushed beetle shells in lipstick, the musk of rodents in perfume and burned cow bones baked into dishware. She’ll be in conversation with writer Angelica Frey. Information is here.

Vocal Jazz Workshop’ spring concert at 8 p.m. at the Longy School of Music, 27 Garden St., Harvard Square. Free, with donations of $10 or up welcomed. Led by Ilona Tipp. Information is here.

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Wednesday, April 26

Fresh Pond nature walk from 10:15 to 11:15 a.m. Free. Meet in the courtyard of the Cambridge Public Library Collins Branch, 64 Aberdeen Ave., West Cambridge, from which park ranger Tim Puopolo walks and talks about what’s growing, changing and blooming in the neighborhood. Information is here.

SustainaVille movie screening of “An Inconvenient Sequel” from 6:30 to 8:30 p.m. at Somerville Public Library West Branch, 40 College Ave., near Davis Square. Free. The 2017 documentary about former vice president Al Gore’s continuing efforts to fight climate change at a global level is part of Somerville’s annual focus on climate resilience. Information is here.

Poets Partridge Boswell, Chard DeNiord and Shanta Lee read at 7 p.m. at the Grolier Poetry Book Shop on 6 Plympton St., Harvard Square. $5. The poets read after an introduction by Benjamin Bellet. Masks are required for the duration of the event. Proof of vaccination is requested at the door. Information is here.

Debut Series with bass-baritone Davóne Tines at 8 p.m. at the Longy School of Music, 27 Garden St., Harvard Square. $55. The Celebrity series hosts Tines and pianist Adam Nielsen with recontextualized Bach arias, Caroline Shaw’s “Mass” and religious ritual, weaving in spiritual arrangements by Tyshawn Sorey, Moses Hogan and Margaret Bonds, as well as Julius Eastman’s a cappella work “Prelude to the Holy Presence of Joan d’Arc.” Information is here.

Drag Night at 8 p.m. at Aeronaut Brewing, 14 Tyler St., near Union Square, Somerville. $15 for a 21-plus show. Queens Coleslaw, Severity Stone and Harlow Havoc perform, welcoming newcomer Lilly Rose Valore. Information is here.

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Thursday, April 27

Somerville Open Studios first-look exhibit from 2 to 5 p.m. at the Somerville Museum, 1 Westwood Road, in the Spring Hill neighborhood (and continuing Friday and Saturday). Free. See artists’ work and plan visits for the actual upcoming Open Studios around the city. Information is here.

Harvard Art Museums at Night from 5 to 9 p.m. at the Harvard Art Museums, 32 Quincy St., near Harvard Square. Free. Wander the galleries, mingle in the Calderwood Courtyard, chat over Mediterranean parfaits from Arlington’s Magic Bites or a drink and browse the shop. Special this time: creations by jewelry maker Rina Young and “Spring,” an interactive projection celebrating the end of winter, created by Devon Bryant with Susan Berstler and Josh Widdicombe. Information is here.

Arbor Week tree walk at 5:30 p.m. starting at the Russell Youth Center, 680 Huron Ave., Huron Village in West Cambridge. City arborists Dave Lefcourt and Abby Bentley lead a walk, weather permitting, of approximately 2 miles, with the last third going through Fresh Pond. Information is here.

Annual Margret & H.A. Rey Curious George Lecture with Stuart Gibbs from 6:30 to 8 p.m. at the Cambridge Main Library, 449 Broadway, Mid-Cambridge. Free. The author of bestselling middle-grade series such as “Spy School,” “FunJungle” and “Charlie Thorne” will talk about his work, take questions and autograph. Information is here.

Susan Tan reads from “Ghosts, Toasts, and Other Hazards” at 7 p.m. at Porter Square Books, 25 White St., Porter Square. Free. The author of the “Cilla Lee-Jenkins” series returns with a middle-grade novel about a girl who must overcome her worries to find the truth behind her town’s urban legend. She’ll be in conversation with Rebecca Mahoney, author of “The Valley and the Flood.” Information is here.

Shit-Faced Shakespeare’s “Macbeth” from 7 to 8 p.m. at The Rockwell, 255 Elm St., Davis Square, Somerville (and continuing Friday and Saturday). $30 and 18-plus. The troupe brings the tragedy of a loyal soldier who listens to the voices of greed and power, resulting in murder and ruin. But there’s a spin to this version beyond it being truncated to an hour of run time: One actor is selected at random every night to drink for the four hours before showtime, leaving the remaining sober cast to fight their way through the show while incorporating, rectifying, justifying and generally improvising around the drunkenness. Versions of this show have been running since 2010 using various Shakespearean works. Masks are required. Information is here.

“The Eagle Flies Again: a 1970s Space Age that Never Was” talk from 7:30 to 8:30 p.m. at the Somerville Public Library, 79 Highland Ave., on Central Hill. Free. Zoey Sugerman-Brozan, an 11th-grader at Boston’s Meridian Academy, breaks down the history of NASA during the Nixon administration and why we’re still struggling to reach the moon – and lays out an alternate timeline in which the agency got all the funding it needed. Afterward is a moon viewing assisted by astronomy teacher and Somerville resident Alex Trunnell. Information is here.

“Bolt” dance at 7:30 p.m. at the Multicultural Arts Center, 41 Second St., East Cambridge (and returning Friday). $35. A multidisciplinary performance uplifting femme voices from the Asian-American diaspora with choreography by I.J. Chan, Jeryl Palana Pilapil Brown and Olivia Moon. Information is here.

Opera Creation Lab spring showcase at 8 p.m. at the Longy School of Music, 27 Garden St., Harvard Square. Free, with donations of $10 or up welcomed. A showcase of short works written and performed by Longy composers and vocalists: “Lori, a Micro-Opera for our Stolen Sisters,” set around human trafficking in Texas and composed by Charlotte Koonce with a libretto by Sydney Pérez; and “Magical Art Class,” in which paintings come to life, composed by Zhining Jim Hu with a libretto by Anastasia Rainbow, Mónica López Garzon, Sydney Pérez and Mona Majid. Information is here.

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Friday, April 28

Spring into Gardening book and herb sale from noon to 7 p.m. at Bryn Mawr Bookstore, 373 Huron Ave., Huron Village in West Cambridge (and continuing Saturday). Free. Get a head start planning and planting a garden with used gardening books and cookbooks, all 50 percent off, and small containers of mint, chives, basil and some lettuces. Proceeds go to scholarships for Boston-area students attending Bryn Mawr College. Information is here.

Somerville Open Studios first-look exhibit (continued) from 2 to 5 p.m. at the Somerville Museum, 1 Westwood Road, in the Spring Hill neighborhood (and continuing Saturday). Free. Information is here.

Hypnothesis 2 music experience at 5 p.m. at Sonia, 10 Brookline St., Central Square. $12 and 18-plus. Immersive audiovisuals with musicians from Scotland, Montreal, Taiwan, South Korea, Germany, China, New York and Los Angeles with dance, lounge and an artist Q&A. Information is here.

“Hand Me Down” art reception from 6 to 8 p.m. at Gallery 263, 263 Pearl St., Cambridgeport. Free. Welcome “Hand Me Down,” a national exhibition juried by LaiSun Keane of the LaiSun Keane Gallery, which presents work from inherited or cultural materials and objects. The show is up through May 20. Information is here.

Shit-Faced Shakespeare’s “Macbeth” (continued) from 7 to 8 p.m. at The Rockwell, 255 Elm St., Davis Square, Somerville (and continuing Saturday). $30 and 21-plus. Masks are required. Information is here.

“Bolt” dance (continued) at 7:30 p.m. at the Multicultural Arts Center, 41 Second St., East Cambridge. $35. Information is here.

Double Bill, a Meta-Shakespeare Extravaganza from 8 to 10 p.m. at Unity Somerville, 6 William St., just off College Avenue near Davis Square, Somerville (and continuing Saturday and Sunday). $22.69. The Theatre@First company presents short scenes on the classics, how to inhabit them and how they inhabit us, described as a “fast-paced garage-punk show with mashups blurring Shakespeare scenes into modern works,” including a Tolstoy vs. Orwell rap battle, what Toussaint L’Overture thought of “The Tempest” and scenes on the awkward collision of 16th century politics with modern progressive theater. Information is here.

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Saturday, April 29

Free admission day from 10 to 5 p.m. at the Harvard Art Museums, 32 Quincy St., near Harvard Square. Part of Arts First, the university’s annual celebration of its community’s creativity. In addition to the museums’ usual offerings, there will be a performance fair of music and dance from 1 to 5 p.m. in the Calderwood Courtyard and Adolphus Busch Hall. Information is here.

Mayor’s Bike Bonanza 2.0 from 11:30 a.m. to 1:30 p.m. starting at Cambridge City Hall, 795 Massachusetts Ave., Central Square. Free. A 6-mile, family-friendly ride (with Bluebikes provided to those who need them) to the Oggi Gourmet pizza shop in Harvard Square; La Saison Bakery in Neighborhood 9 near Fresh Pond; and back to Harvard Square for ice cream at Lizzy’s. Information is here.

Spring into Gardening book and herb sale (continued) from noon to 5 p.m. at Bryn Mawr Bookstore, 373 Huron Ave., Huron Village in West Cambridge. Free. Information is here.

Somerville Open Studios first-look exhibit (continued) from 2 to 5 p.m. at the Somerville Museum, 1 Westwood Road, in the Spring Hill neighborhood. Free. Information is here.

Saturday Screens: “Wall-E” from 3 to 4:45 p.m. at the Cambridge library’s O’Neill Branch, 70 Rindge Ave., North Cambridge. Free. See Pixar’s animated 2008 charmer about a small waste-collecting robot that inadvertently embarks on a journey to decide the fate of humankind. Reviewer Tom Meek called it “original and engaging.” Information is here.

M.T. Anderson reads from “Elf Dog and Owl Head” at 4 p.m. at Porter Square Books, 25 White St., Porter Square. Free. A bored boy during a pandemic lockdown meets a mysterious dog in the woods who leads him down paths he never knew existed, deeper into surreal unknowns that hold terrors as well as wonders. Anderson will be in conversation with Nancy Werlin, author of “Healer and Witch.” Information is here.

Shit-Faced Shakespeare’s “Macbeth” (continued) from 7 to 8 p.m. at The Rockwell, 255 Elm St., Davis Square, Somerville (and continuing Thursdays through Saturdays until June 24). $30 and 21-plus. Masks are required. Information is here.

“F is for Faure, Fahim and Lena-Frank” concert at 7 p.m. at Harvard-Epworth United Methodist Church, 1555 Massachusetts Ave., Harvard Square. Pay what you can. Analog By Choice presents another in a series exploring the relationship between composer, musician and audience with works from “Suite Mestiza” by the Peruvian-American Frank, piano works from Afghanistan transcribed by Fahim and Faure’s “Piano Quartet in C minor.” Information is here.

“This Love Unbound” dance at 7:30 p.m. at Arts at the Armory, 191 Highland Ave., Somerville (and repeating Sunday). Pay what you can. Emmanuel Music, Urbanity Dance and choreographer Shura Baryshnikov collaborate to present Britten’s “Serenade for Tenor, Horn and Strings,” “Phaedra” and “Les Illuminations”; Harbison’s “For violin alone” selections; and Shaw’s “Limestone and Felt.” Information is here.

“Ink in Motion” dance from 8 to 9 p.m. at The Foundry, 101 Rogers St., East Cambridge (and repeating Sunday). $20. The Alive Dance Collective explores themes in literature, day-to-day reading and children’s books with troupes Detritus Dance and Monkeyhouse and music by Ben Cuba, Christian DeKantel and Graham Peck. Audiences will be invited to engage with the performers through games afterward. Information is here.

aMaSSiT Pitch Sessions dance from 8 to 9:30 p.m. at The Dance Complex, 536 Massachusetts Ave., Central Square (and repeating Sunday). Pay what you can. Choreographers C.J. Donohoe, Brooke Frieling, Laura Sanchez, Annabelle Schultze and Ananth Udupa present works in progress and take feedback in a “Make it, share it, show it” event. Information is here.

Double Bill, a Meta-Shakespeare Extravaganza (continued) from 8 to 10 p.m. at Unity Somerville, 6 William St., just off College Avenue near Davis Square, Somerville (and continuing Sunday). $22.69. Information is here.

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Sunday, April 30

Fresh Pond City Nature Challenge from 1 to 3 p.m. starting at the Water Department facility at 250 Fresh Pond Parkway, in West Cambridge at Fresh Pond. Free. Compete with other cities to see who can make the most observations of nature and find the most species in Lusitania Meadow for use by researchers nationwide – all that’s needed is a smartphone with the free iNaturalist app. Information is here.

“Ink in Motion” dance (continued) from 2 to 3 p.m. at The Foundry, 101 Rogers St., East Cambridge. $20. After this show, audiences will be invited to engage with the performers in literary-inspired movement. Local children’s author Toni Buzzeo, whose new “Eat Your Superpowers!” inspires the opening choreography, will sign pre-purchased books. Information is here.

“This Love Unbound” dance (continued) at 3 p.m. at Arts at the Armory, 191 Highland Ave., Somerville. Pay what you wish. Information is here.

Double Bill, a Meta-Shakespeare Extravaganza (continued) from 4 to 6 p.m. at Unity Somerville, 6 William St., just off College Avenue near Davis Square, Somerville (and returning for the next two weeks). $22.69. Information is here.

Shared Spaces at 7 p.m. at the Multicultural Arts Center, 41 Second St., East Cambridge. Pay what you can. Music and spoken word reflecting on the Japanese-American experience with internment survivor David Sakura sharing the stage with the premiere performance of Kenji Bunch’s “String Quartet No. 5, Songs for a Shared Space,” commissioned by the Sheffield Chamber Players. Also on the program: Bunch’s “Minidoka,” a viola work commemorating survivors of an infamous Japanese prison camp; and a cello solo by Bunch. Information is here.

aMaSSiT Pitch Sessions dance (continued) from 7 to 8:30 p.m. at The Dance Complex, 536 Massachusetts Ave., Central Square. Pay what you can. Choreographers Libby Bullinger, Mira Göksel, Simon Montalvo and Nora Stephens present works in progress and take feedback in these “Make it, share it, show it” events. Information is here.