Slow and easy in HertsBedsBucks you must be joking, all the ones I've been to over the years play at warp factor six and if it's a tune they really know then even the Enterprise wouldn't be able to keep up.
But a group in Cambridgeshire do things a lot different from round here.
Try the Greenshoots who meet at the Red Lion, Whittlesford, which is near the Duxford junction of the M11. Not very close to home but not 400 miles away.
The only contact I have is Paul Hardy, 15 Kentings, Comberton, Cambridge, CB3 7DT
They used to meet every two weeks, Monday evenings, in the function room of the Red Lion and you used to be able, for a small fee, to get copies of the tunes for the next meeting. Don't expect miracles, but keep practicing and in a year or so's time you to will be at warp factor six.