Spot on Jordi & Roger, Crossover & 60's sound great when played together, however start getting into the 70's stuff and my eyes glaze over, that's not to say I don't like some 70's.
As regards to the Midlands, Crossover & 60's midtempo for a long time has been a Dirty word, very few venues catering for it, which is why I travel so much seeking out venues that do, Seems to be a consistant theme among Midland venues to play out and out Northern and popular 70's, not my cup of tea.
As regards to shutes original post, think you need to be specific as to what music will be played at the event, If people come along expecting crossover, and get 70's & modern, maybe not be too pleased.....just a thought.
John