Owner: Dwindling sales kill Frank Music Company NEW YORK (CNNMoney) —Even the home to Carnegie Hall and the New York Philharmonic isn't immune to the realities of the digital age of music. Frank Music Company, New York City's last remaining store dedicated to selling classical sheet music, closed on Friday. Frank's customers, a community of artists dedicated to playing music written with quills centuries ago, must now buy them online or download PDFs.The store's owner, Heidi Rogers, said dwindling sales killed the shop."Musicians are underpaid," she said. "How can they buy music if they're not getting paid enough?"Why would a...