In Cincinnati fro the new piece. If sound were taste, Tommy Schipper's version of Air Music would resemble the best sour cream mashed with hand-picked gooseberries: smooth without slickness, tart without bitterness, a healthful dessert. An unexpected surprise is that the music does sound like air - like a mean wind through flaming leaves of yew. A barrel of ice cubes flung into an enamel aviary. And so forth.