http://www.southlakeland.gov.uk/pdf/Licensing%20Policy%202008.pdf

The following is from Southlakeland Council's Statement of Licensing Policy:

2.5 The Authority is keen to promote the artistic and cultural life of the District and licensing will be approached with a view to encouraging cultural activities and innovative forms of public entertainment for the wider cultural benefits of communities generally.
Only conditions strictly necessary for the promotion of the licensing objectives will be attached to a licence for activities of this nature, as the Authority is aware of the need
to avoid imposing substantial indirect costs. Where there is any indication that licensing requirements are deterring such events, the policy may be reviewed with a view to investigating how the situation may be remedied.

As the Council must follow their own policy - perhaps a locally resident musician can ask for such a review?