It is not possible, given any degree of optimism and generosity in regard to people in general, to set a time limit on creative reflection or a limitation on the number of people involved in the creation.
What is a good performance? It lies in the hands and head of a performer... the shortest way between two people is not a straight line.
Cage's Music of Changes was a further indication that the arts in general were beginning to consciously deal with the 'given' material and, to varying degrees, liberating them from the inherited, functional concepts of control.
There is no music that can't be used politically, but the motives behind the creation of that music can be non-political.