While doing the research for the Birmingham Post article below I was trying to find the name of a wonderful ambient installation in Cannon Hill park in the late 90s. In my web search I stumbled upon Bobby Bird and the HIA - he and his friends put the Cannon Hill event on - it was called 7/8ths of a second after the time it takes time to travel across the park.
HIA did an album called Birmingham Frequencies. Intrigued by tracks named from the places around me in Moseley I bought the CD. It's wonderful. If you like ambient buy it. The Cannon Hill Park track in particular is wonderful. He also did a CD called SHADO - guess that goes on my wants list.