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In America when I was setting out to write the
orchestral parts of my recent Concert for Piano and
Orchestra which was performed Sept. 19th in Köln, I
visited each player, found out what he could do with
his instruments, discovered with him other
possibilities, and then subjected all these findings
to chance operations, ending up with a part that was
quite indeterminate of its performance. After a
general rehearsal, during which the musicians heard
the result of their several actions, some of them, not
all, introduced in the actual performance sounds of
a nature not found in my notations, characterized for
the most part by their intentions which had become
foolish and unprofessional. In Köln hoping to avoid
this unfortunate state of affairs, I worked with each
musician individually and the general rehearsal was
silent. (I should let you know that the conductor has
no score but has only his own part. So that, though he
effects the other performers, he does not control
them.) Well, anyway, the result was in some cases just
as unprofessional in Köln as in New York. I must find
a way to let people be free without their becoming
foolish. So that their freedom will make them noble.
How will I do this? That is the question.
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