By the late 1970s many major US cities had thriving disco club scenes which were centered around discothèques, nightclubs, and private loft parties where DJs would play disco hits through powerful PA systems for the dancers.

Richard Marx & Matt Scannell at the Glass Cactus Nightclub in Grapevine, Texas on 08/14/09. … Richard Marx Matt Scannell Duo show concert Glass Cactus Grapevine Texas Should’ve Known Better Part of the fallout from the payola scandal was tighter control of the music by station management.