Fingers crossed that Spain has escaped the latest hellish heat dome by mid-September, when this four-day, 62-show arts fair opens in Tàrrega, a lovely old Catalonian town two hours by train from Barcelona. That the performances are free or low-cost and mainly take place outdoors—in plazas, amphitheaters, pavilions, the shells of swimming pools—lends lightness to genres that already tend towards joy: small-bore circus, clowning, street dance, and contact improv, a dance idiom where bodies merge and separate according to gravity and ballast. This is not to suggest that the artists have forgotten various and sundry “repressive contexts” plaguing the world, the very serious FiraTàrrega Web site reassures us. But the best creators at this year’s fair let their disciplines set the terms. In the quartet KMS of Resistance, by the Gen-Z French Moroccan choreographer Mehdi Dakan, breath unites disparate dramas. Two dancers lock lips as if providing emergency oxygen; all four roll like tumbleweed according to the rhythm of their inhales. The patterns look simple and feel urgent. Manolo Alcantara’s art also has fundamentally to do with rhythm. In his affectingly graceful solo Refuge, the Catalan circus performer organizes a whole poetic hour around walking the wire. As for Tom de Ronde & Nick Deroo, the deadpan Dutch duo turns the push and pull of partnering into a very funny meditation on intimacy. —Apollinaire Scherr