Before he was a choreographer, Mr. Rigal was an athlete. (His event was the 400 meter hurdles.) He applies strength, speed and bursts of flight to the power and poetry of rock concerts in "Micro" at the Joyce Theater as part of Danse: A French-American Festival of Performance & Ideas. Bass, keyboard, drums and, of course, electric guitars take center stage, along with the shirtless and sweaty dancers and musicians who play them.