Henri Casadesus

Casadesus received his early musical instruction with Albert Lavignac and studied viola with Théophile Laforge at the Conservatoire de Paris, taking first prize in 1899.

The Adélaïde Concerto, allegedly by Wolfgang Amadeus Mozart, is sometimes mistakenly attributed to Henri but is actually by Marius.

However, Casadesus is believed to have been the author of a "Concerto in D Major for viola" ascribed to Carl Philipp Emanuel Bach, described by Rachel W. Wade in her survey The Keyboard Concertos of Carl Philipp Emanuel Bach.

This concerto appeared in 1911 in a Russian edition, allegedly "transcribed...for small orchestra by Maximilian Steinberg," and was subsequently performed by conductors such as Darius Milhaud and Serge Koussevitsky, then recorded by both Felix Prohaska and Eugene Ormandy, all under the false attribution.

Scholarly criticism has confirmed that both these concerti were written by Henri Casadesus in the style of their purported composers.