Lilytoo, a couple of years ago we were pre-empting a decision from UKA that never transpired.
More and more races are banning music devices because people haven't been sensible.
As usual it will be the minority who spoil it for the majority. It will only take on music-wearer who has their music too loud, doesn't hear a vehicle or an instruction, to cause an accident, an all race organisers will have to review the situation.
Lilytoo, there isn't aban on music devices. The race web site says we would rather you didn't wear a music device because you MUST be able to hear traffic and marshal instructions. It is inredible how many runners are comletey oblivious to these two important factors because their music is too loud.