When/how did smooth jazz become the default mall music?

[Lubricious_Integument]

@EmilyG

Much of the time, the Muzak/background music played in shopping malls is smooth jazz. When did this happen, and is there a particular reason for it?

It happened in 1993. They tried using GWAR for a while back in 1992 but focus groups and market research indicated it caused a decrease in retail spending and minutes spent in the mall.