The Mostly Jazz Festival 2011 7 July, 2011 | EDGE Insights | 1 min read. The Mostly Jazz Festival 2011 This weekend was the Mostly Jazz Festival set in Moseley Park on the 1st, 2nd and 3rd of July. Fantastic atmosphere, great weather, great sets from the likes of Craig Charles and Booker T. There was also all sorts of interesting little stands there, including an organic tea stand and a Pimms stand!! Would definitely recommend going next year!! Check the website out here!!