Playing and improvising music is a specific trance state of the brain, just as dreaming takes place in the REM trance state. Art trances are partial, since we have access to regular consciousness at the same time. Each art form uses different avenues of expressive image-ination (the making of images). Music differs from painting and theater in that it does not have a direct visual reference. So the visual parts of the brain are also diminished. Since music is feeling, the limbic is activated with the auditory centers. The feeling comes out of the Authentic Being of the musician. This is an early brain mapping which does not even include much frontal activity. All authentic art flow is given form by the expressive image-ination of our authenticity. Like in all trances it is alive in the living moment. The musician’s brain reflects the music creation and performing trance state. So diminished activity in the Frontal regions is but a part of the overall brain activation for composing music.
[If a classical violinist is playing Bach, he is expressing Bach’s image-ination through the symbolic codes of musical notation, black notes on a five barred line. He receptively takes in Bach’s authentic expression and gives his expressive capacity over to Bach’s creation. His own feeling is exercised in his performance modalities.]