In January 2009, Andy Williamson (sax) and Junior Laniyan (taps) co-taught a series of four classes with the aim of introducing dancers to some of the basic music theory and conventions used by jazz musicians in a jam session in order to give them a better idea about what is possible and to demystify the whole dark business of 'improvisation' - which needlessly scares some people. This blog is a place to collect useful links, observations and thoughts.