a system by which a service provider administers data pertaining to attendees of an event hosted at a venue , including a data store and a network connection associated with the service provider . the data store includes profile data for a plurality of users . user identification media is issued to a user upon registration of user profile information with the service provider , which media carries the user identification data . a reader device at the venue determines user identification data carried by said media . the reader device transmits an identification data signal to the service provider upon determination of the user &# 39 ; s identification data , wherein the service provider searches said data store for the user &# 39 ; s profile data , and transmits a return data signal to said venue that includes music preference data retrieved from said user profile data . the electronic apparatus at the venue compiles received music preference data from the service provider .