Purists beware. Few of the 120-plus dance, theater and music events at the sixth annual Atlas Intersections Festival fit neatly into a single category. (Full disclosure: The Washington Post is a festival sponsor.) Classical quartets throw in banjo or beat-boxing. Opera collides with improv comedy. Ballet dancers gyrate to hip-hop tunes. To help you make sense of it all, we present the handy diagram above.

Atlas Performing Arts Center, 1333 H St. NE; Fri. through March 7.

Capital City Symphony

The program was partially determined via social media in December, when fans nominated favorite classical pieces. They’ll also perform Benjamin Britten’s “Les Illuminations” and play trippy videos.

Feb. 27, 8 p.m., $27.50

Chromatics

In “Astrocappella,” this local a cappella group, which counts several NASA scientists among its members, will sing catchy, technically accurate songs about the solar system.

Sat., 4:30 p.m., $12

Dissonance Dance Theatre

The contemporary ballet company will perform a variety of work, such as the world premiere of “Plyo,” which combines the grace of a traditional pas de deux with hip-hop swagger.

March 1, 5:30 p.m., $27.50

Dog & Pony DC

In the play “Toast,” audience members will collaborate with actors to invent tech stuff.

Feb. 28, 8:30 p.m. & March 7, 3 & 8:30 p.m., $22

Flo Anito

Classically trained pianist Flo Anito writes upbeat pop music with a jazzy vibe.

Feb. 28, 7:30 & 9 p.m., free

invoke

This quartet of multi-instrumentalists, above, weaves bluegrass, folk and jazz into contemporary classical compositions.

Sun., 5 p.m., $15

Moveius

In “Glacier,” ballet dancers explore global climate change by embodying the melting and fracturing of polar ice caps.

March 6, 8 p.m. & March 7, 1:30 p.m., $22

Music Pilgrim Trio

The group’s original compositions borrow from jazz, klezmer, Russian, classical and Latin-American music.

Feb. 28, 4, 5 & 6:30 p.m., free

Not What You Think

The choral group sings uplifting songs about social justice.

March 1, 4 p.m., $16.50

Rajas

Classicallytrained musician Rajna Swaminathan, above, will lead a performance of experimental jazz underpinned by classical Indian rhythms.

March 6, 9:30 p.m., $16.50

Tehreema Mitha Dance Company

The multicultural, contemporary dance troupe performs “Live the Live,” an exploration of human relationships.

March 1, 2:30 p.m., $27.50

UrbanArias

Five opera singers will invent an original work based on audience suggestions.

Sat., 7 p.m. & Feb. 27, 9:30 p.m. & Feb. 28, 7 p.m., $27.50.

Washington Revels

Gallery Voices The choral ensemble celebrates the coming of spring with medieval, Renaissance and modern songs.

Sat., 2:30 & 4 p.m., free