http://www.herefordtimes.com/news/local/8958018.Mamma_Jammas_in_Hereford_s_West_Street_gets_go_ahead_for_live_music_and_dancing/

John King comments:
Because of hearsay evidence about noise from recorded music (which means DJs), environmental health officers at Hereford Council ban live music for six days a week, while allowing DJs to carry on.