One thinm we need to do to try to change the way we talk about this, and encourage other people to talk about it. By referring to the "two-in a bar rule" we've made it easy for Kim Howells to talk about "abolishing the absurd two-in-a-bar rule" in a way that makes it sound as if he is loosening the restrictions.
We should talk of the "two-in-a-bar exemption" to the general rule forbidding music without a licence in a public place. We don't want the two-in-a-bar rule abolished. We want the exemption widened to allow us to make music as we wish, so long as it doesn't annoy or endanger people.