Audio postproduction company Sound Lounge has launched a second New York location on Hudson Street in SoHo, called Sound Lounge Hudson. The location will serve as the home of a new music and sound design division headed by executive producer Brad Stratton, formerly of Fluid. The creative staff includes Sound Lounge co-founder Marshall Grupp, Kevin Ferguson and Harry Frost. The company also adds one new mixer, Scott Persson. ... Gartner in Santa Monica has signed directors Mike Bigelow, formerly of Biscuit, and Theodore Melfi, formerly at Uber Content (Area 51), for exclusive U.S. spot representation. ... Dallas-based postproduction company Filmworkers Club has added two colorists, Joe Malina and Oscar Oboza. ... Executive producer Heidi Bayer has joined promo house Ultrabland in New York from Storm Media Studios in L.A. ... Senior art director Simon Tuplin at davidandgoliath has been promoted to associate creative director. ... Musikvergnuegen has hired Michael Lozano, a manager at Gracie films, as production coordinator.