In case anyone's interested, the Early Music Shop at Saltaire (just north of Bradford) is having a special weekend 12-14 Sept, with demonstrations of lots of early music instruments and special offers.
www.earlymusicshop.com/front/emsframes.html
The link isn't working and nor is the page about the weekend, but there's a link to the info about the weekend from the page I've given.
Saltaire festival is also on this weekend. There's also a Reed Organ and Harmonium Museum at Saltaire which is run by a very interesting chap.