A computerized wagering game system comprises a gaming module that includes a processor and gaming code which is operable when executed on the processor to conduct a reel slot machine wagering game on which monetary value can be wagered. An audio module is operable to play an environmental audio track...http://www.google.com/patents/US20080139284?utm_source=gb-gplus-sharePatent US20080139284 - Ambient Audio Environment in a Wagering Game