Falcom Sound Team jdk (formerly spelled as J.D.K.) is the collective name created by Nihon Falcom in 1988 to obfuscate their music credits, hiding which employee wrote which track. (For releases prior to J.D.K., see [artist:571a72ec-c52d-4982-93e1-37b85f81cce2|日本ファルコム].) In 2003, the name started to cover outsourced tracks written by contractors who are not employees of Nihon Falcom. In 2019, outsourcing peaked to the point where half of a game's soundtrack is no longer written by employees of Nihon Falcom.