A NIGHT AT THE ROCK OPERA | Ultrasonic Rock Orchestra, a Boston-based group "committed to bringing the best of classic rock to life for those who've never had a chance to hear it LIVE in 3-D," reprises its evening-long orgy of the Who, David Bowie, the Beatles, and Queen — and threatens to throw some Led Zeppelin into the mix. | Stuart St Playhouse, 200 Stuart St, Boston | 800.447.7400 | Through June 27 | Curtain 7:30 pm Sat | $39.50
NINE | Longwood Players take on the 1982 Tony Award-winning musical with book by Arthur Kopit and music and lyrics by Maury Yeston. It's based on the Fellini film 8½, in which a famous film director is besieged by the women in his life. Kevin Mark Kline directs. | Cambridge Family YMCA Theatre, 820 Mass Ave, Cambridge | 800.595.4849 | Through May 2 | Curtain 8 pm Thurs-Fri | 2 + 8 pm Sat | $16-$25; $3 discount students, seniors
NOISES OFF | Malcolm Morrison is at the helm of this Hartford Stage production of British writer Michael Frayn's hilarious and precise backstage farce, which follows a touring production of a clichéd British sex farce as it unravels on the road. | Hartford Stage, 50 Church St, Hartford, Connecticut | 860.527.5151 | Through May 17 | Curtain 7:30 pm Tues-Thurs + 2 pm Wed | 8 pm Fri | 2 pm [no May 9] + 8 pm Sat | 2 pm + 7:30 pm [no evening May 17] Sun | $23-$66; limited number $10 "Ten Spot" tickets; half-price "What a Rush!" tickets, at the box office two hours before curtain; $10 discount students, children
PICASSO AT THE LAPIN AGILE | Daniel Gidron directs this New Repertory Theatre staging of Steve Martin's droll 1993 rumination on creativity. The year is 1904, and a young Albert Einstein, on the brink of his Theory of Relativity, and a young Pablo Picasso, a few years from the leap of Les demoiselles d'Avignon, share drinks and ideas at the Paris boîte of the title. Neil A. Casey, Scott Sweatt, and Marianna Bassham head the cast. | Arsenal Center for the Arts, 321 Arsenal St, Watertown | 617.923.8487 | Through May 10 | Curtain 7:30 pm Wed | 7:30 pm Thurs | 8 pm Fri | 3:30 + 8 pm Sat | 2 + 7:30 pm [no evening May 10] Sun | $35-$55; $7 discount seniors; $13 student rush | Carolyn Clay's review page 26
THE SPACE BETWEEN | Harvard senior Calla Videt's drama is the first student-written work to debut on the Loeb Drama Center Mainstage in more than a decade. The theater and physics student tells the life story of Caltech professor and physicist Richard Feynman, which is also the subject of QED. "As the show oscillates between scenes set in different places and times, it explores questions that emerge from the narratives and are fundamental to both the arts and the sciences. What does it mean to see? What does it mean to know?" Movement, dance, trapeze, video, and film get into the act. | Loeb Drama Center, 64 Brattle St, Cambridge | 617.496.2222 | Through May 2 | Curtain 8 pm Thurs-Sat | $12; $8 students, seniors
