Aaron Copland

Mozart in his music was probably the most reasonable of the world’s great composers. It is the happy balance between flight and control, between sensibility and self-discipline, simplicity and sophistication of style that is his particular province… Mozart tapped once again the source from which all music flows, expressing himself with a spontaneity and refinement and breath-taking rightness that has never since been duplicated.

The inspired moment may sometimes be described as a kind of hallucinatory state of mind: one half of the personality emotes and dictates while the other half listens and notates. The half that listens has better look the other way, had better simulate a half attention only, for the half that dictates is easily disgruntled and avenges itself for too close inspection by fading entirely away.