Beast Coast returned for its 11th year, transforming Gateway Park into a giant obstacle course.

[Updated]: So much music, so little time. While tomorrow’s This Week In Jazz column will preview this year’s fantastic Duke Ellington Jazz Festival, there is even more jazz to be had for those who can’t wait that long. This Saturday, September 8, the 17th Annual Rosslyn Jazz Festival will take place at Gateway Park from 1 p.m. to 7 p.m. On the same day, D.C.’s Maryland suburbs get their own jazz celebration in the form…

FRIDAY: >> The fine folks at the Black Cat are throwing themselves a 13th anniversary party tonight, and bully for them — it can hardly be an argument that the bar and music venue has become a nightlife mainstay for those of us who like our drinks cheap and our juke boxes funky. The convergence of two unlucky symbols (13 and black cats) isn’t lost on the staff, who are encouraging you to go ahead…

FRIDAY: >> Comets on Fire bring their detailed, funky prog sound to D.C., with openers Benjy Ferree(***) and (The Sounds of) Kaleidoscope at Black Cat. I (heart) music tells us that if you love Deep Purple, you’ll like Comets on Fire. Listen to a few tracks over at Hype Machine to test the waters. $12, 9:30 p.m. >> Looking for a straight-up chance to dance? Venezuela’s Los Amigos Invisibles always deliver, with DJ Afro at…