People who know me will tell you I always have jazz on the brain. Guilty as charged. Recently, scientists studied improvising musicians, hoping to unlock the underlying neurological functions of high and low level musical improvisation. A summation of the study is here.
Turns out all you have to do is turn off your prefrontal cortex (can an Idiot's Guide to Turning Off Your Prefrontal Cortex be far behind?).
This study reminds me of a conversation I had with the New Orleans writer, performer, and creator Kalamu Ya Salaam. One night on Rampart Street, at a club called The Funky Butt, I watched in awe as Kalamu performed an original poem in a style similar to the way that pianist Cecil Taylor played his music. Kalamu and I worked together at WWOZ in New Orleans. One night, during his Thursday evening Kitchen Sink show, I asked him how he could do such things.
He said, "There's an invisible button located on your forehead. It controls the part of your brain that says you cannot do something. Turn it off."