There is a point being overlooked here.

The majority of pubs seeking exemption want to put on electric music. That is precisely the sort of music most likely to create disturbance and the need to invoke non-Licensing Act measures regarding noise and nuisance.

What could and should be done immediately without any need for contention would be to exempt any music not using electrical or electronic amplification - leaving the existing law to deal with opera singers who can bring down the walls of Jericho, massed great pipes, steam organs, and itinerant troupes of Japanese drummers - all of which are -er- rare, unlike the 10,000 watt PA rig or 2,000 watt bass guitar amps that are all but ubiquitous.