Unknown waltz by Chopin found in library vault after nearly 200 years

The score, on a card bearing Frederic Chopin's hand-written name, was discovered by a curator at the Morgan Library and Museum in New York

An unknown waltz by Chopin, written nearly 200 years ago, has been discovered in the vault of the Morgan Library and Museum in New York.

The score, on a card bearing Frederic Chopin's hand-written name, was found by a curator in the spring, the New York Times reported on Sunday.