The Dance.Here.Now. crew is back with its weekly sister bash, held on the main floor of Santos. Tonight’s fiesta features a deck set from house-music lifer Roger Sanchez. The S-Man has a bit of a split personality: He can go deep and dark, as on his ’90s-era productions for Strictly Rhythm and Maxi, or he can veer toward throbbing, big-room material, as heard on his later productions and at his large-scale gigs. (We’re 99% sure that it’ll be the latter Sanchez on hand tonight.) Sanchez associate Lex da Funk opens up. Go to danceherenownyc.com to get on the reduced-admission list.