Jazz Tangcay Artisans Editor How does one make a documentary about David Bowie, a prolific musician who frequently reinvented himself as a performer, sound great? That was the challenge facing the Emmy-nominated sound crew behind Brett Morgen’s “Moonage Daydream.” “He’s a unique artistic genius,” points out re-recording mixer David Giammarco. “How do you do something like we’ve never seen before?” Giammarco worked with fellow nominee Paul Massey and Morgen, writer-director-editor-producer on the documentary, to navigate their way through telling Bowie’s story. Morgen’s vision was not to use talking heads or a narrator.