The sound has been found in the form of an old Edisonian recording cylinder. The cylinder was repaired, then Walter Murch ACE MPSE synced the film to the correct music in (I believe) 2002. Total running time is approximately 17 seconds.
Angelic and demonic serpentine dances from dawn of cinema by the Lumière Brothers film, called the Serpentine Dance. The dancer is Loie Fuller; the pioneer modern dancer. Recorded in 1896 in Paris, and hand-colored frame by frame.