French court to rule whether 'Bolero' was Ravel's work alone

A French court was set to rule Friday on whether "Bolero", one of the best-known classical music pieces in the world, was written by Maurice Ravel alone -- a decision with big financial stakes.

Ravel first performed "Bolero" at the Paris Opera in 1928 and it was an immediate sensation.

He died 10 years later and his heirs earned millions of dollars until the copyright ran out in 2016 and passed into public domain.

In France, copyright runs for 70 years after a composer's death...