but recorded music requires a PEL.

There'll be recorded music playing from TV's in pubs.

also recorded music in lifts, in supermarkets & other shops

how far outside do their speakers need to be before they are not covered by the premises's own PEL?

[apologies for pinching your lines- but that alone raises other issues]

will everyone who owns a radio, tv, stereo in their own homes need one?

it gets madder & madder