Inside the stadium the law would allow music since it is incidental to the main business of the afternoon - in the case of Sheffield United - fast flowing, entertaining football similar to that played by Barcelona. But dancing cannot be regarded as incidental.(To be honest I assumed the Council would go for the Morris Dance exemption - but they didn't because it could be a nice little earner. Cost of licence goes on rateable value).

Outside the stadium it is whether the council regards it a similar to Morris dancing. No cost involved of course.

I'll get mi anorak.