. "non_performing_personnel" . "Video game designer" . . "Kelly Bailey"@en . "Kelly Bailey is a composer, musician, game designer, conceptual artist and programmer. He was the senior game designer of sound and music at Valve Corporation until he left in 2011 with Mike Dussault, to concentrate on their project Sunspark Labs LLC. He has since returned to Valve in February 2014.Bailey is notable for being behind the Half-Life series' music and sound effects. He is married to Christina Bailey."@en . . . . . "1998Z"^^ . . . "Bailey, Kelly"@en .