I've reworked my archives section to use categories and I find it a really pleasing way to filter what is a large archive of prior choir concerts. I was using Accordian to make the size of the content more manageable but this didn't work so well when you try to search for content. The search works but by default the Accordian wasn't expanded so you could never find the content you were looking for. The category method works much better. 

Thanks again for your help

Graham