Now Playing

Impulse Theater. Basements and comedy go together like beer and nuts or toddlers and sandboxes. The basement of the Wynkoop Brewing Co., where Impulse Theater performs, is crowded, loud and energetic. Impulse does no prepared skits, nothing but pure improv -- which means that what you see changes every night, and so does the team of actors. These actors set up and follow certain rules and frameworks; they rely on audience suggestions to get these scenes going or to vary the action. Your level of enjoyment depends a lot on whether or not you like the players. Charm is a factor, and so is the ability to take risks. Fortunately, the performers are clever and fast on their feet, willing to throw themselves into the action but never betraying tension or anxiety, perfectly content to shrug off a piece that isn't coming together. The show is funny when the actors hit a groove, but equally funny when they get stymied. So in a way, the improvisers -- and the audience -- can't lose. Presented by Impulse Theater in an open-ended run, Wynkoop Brewing Co., 1634 18th Street, 303-297-2111 or www.impulsetheater.com.

The Music Man. Artistic director Michael J. Duran has pulled out all the stops -- no pun intended -- for this production. In a program note, he explains that he was performing in The Music Man on Broadway in September 2001, and all the theaters closed for two nights after 9/11. When the musical reopened that Thursday, it was to an audience of fifty -- but those people needed what the show had to offer, Duran says. The Music Man follows Harold Hill, a huckster who comes into a small Iowa town and sells the townspeople on the idea of a boys' marching band, complete with music, instruments and uniforms. Before he can pull his usual disappearing act, Hill has fallen in love with Marian, the librarian, and -- despite his inability to read a note of music -- won over the town. In the lead, Brian Norber brings huge jolts of energy to the show, and he's abetted by a large, lively cast, a gaggle of charming children and a cheery seven-piece orchestra. The music is sharp, funny and sometimes meltingly lyrical, and you can feel the performers' electric enjoyment in what they're doing. Presented by Boulder's Dinner Theatre through August 19, 5501 Arapahoe Avenue, Boulder, 303-449-6000, www.theatreinboulder.com. Reviewed May 11.