Not so amazing improvisers start doing tricks or they start making noise for noise sake as if it’s proof they are an improviser. They lead no matter what others are doing, it’s like showing off not listening, which is fair since anything in life is fair.
Improvised music reflects back life itself and the unknown sequence of events that is day to day experience – is it going to rain? is it sunny?
Exciting improvisors know they don’t know except possibilities which in a way are like knowing everything.
The improvisers who show how careful they are listening like birds in the trees singing back and forth with each other are the most enjoyable.
Used to wonder if it was really true when they said Keith Jarrett was spontaneously composing. We had a lot of arguments as teenagers about whether that could be true. One thing that never occurred to us was whether the audience was capable of hearing it.