I use improvisation for many reasons. It can spark rich ideas for composition, for it gives us a more intimate sense of raw materials of sound. It provides an astonishing physical and emotional release, and helps develop the kind of spontaneity that can transform the way we play Bach or Mozart or Bartok. It creates a more direct personal relationship with an instrument that can melt square-shouldered bravado into keen-eared listening.
–Eloise Ristad, A Soprano on Her Head