A rare waltz manuscript believed to be composed by Frédéric Chopin was discovered at the Morgan Library & Museum in New York ...

Chopin usually signed manuscripts that were gifts, but this one is unsigned, suggesting that he changed his mind and withheld it.

A long-lost waltz by the famed composer Frédéric Chopin has been uncovered at the Morgan Library and Museum in New York City.

For the first time in more than 90 years, a previously unknown waltz by a renowned 19th-century composer has been uncovered.