When sounds come together and form sound, the ear is intrigued.  On-alert for no good reason other than its encounter with sonic perfection.  Harmony is that perfection.  Harmony is hermetic - lacking either panic or uncertainty - as there is usually safety in number.  Neko Case knows her gangs and, as a practice, her harmonies.  Not only a siren of modern myth and neo-story, Professor Case is proof of harmony's power to nourish and redeem; even if humans aren't always getting along.  She authors her art en masse; and the environment remains (as do we), eternally grateful.