Flow happens, if I am performing and can't get to the 'Flow' aspect, it's a bad night.
However, as mentioned, practice does indeed help make the 'Flow' possible, but to me that went without saying.
A musician knows how to play their instrument (or 2 or 3 or 4)
A musician getting into the 'Flow' was the article, and yes, it happens. You know the music well enough that you are not in the 'reading/thinking/computing' state of mind (learning), but more in the feel/groove state, which is always a much better place to be.
Music flows out of you that you never would have anticipated sometimes.
rharv, VERY well articulated.
I agree that practice is fundamental, the musician must know the piece "backwards and inside out". And this does go without saying.
And I agree, as you say, that there is a difference between reading/thinking/computing (clunky, descrete, relatively slow,
digital?) and feel/groove (smooth, continuous, effortless, relatively fast, emotional?,
analog?)
I'm sure there is more to this subject and it's neat that researchers are investigating this. As happens with so many other areas of research, most likely this area of research will result in unforecasted benefits in adjacent areas of brain science.