Jazz is the music of the body. The breath comes through brass. It is the body’s breath, and the strings’ wails and moans are echoes of the body’s music. It is the body’s vibrations which ripple from the fingers. And the mystery of the withheld theme, known to jazz musicians alone, is like the mystery of our secret life. We give to others only peripheral improvisations.
―Anaïs Nin, The Diary of Anaïs Nin, Vol. 5: 1947-1955