The dates that you quote indicate the acoustic era. Preaching to the 
choir here I'm sure but, AFAIK, Vitaphone was the first commercially 
viable sound for picture and the system was not introduced until 1926.



Corey Bailey Audio Engineering

On 9/1/2018 7:42 PM, Thomas Stern wrote:
> In A MILLION AND ONE NIGHTS (Terry Ramsaye, 1926) a book about movie
> history, there is an indication that the entire performance was recorded
> on phonograph records.  The Play (performed at the Academy of Music, NY) was
> filmed in 1915 (Lubin) and 1920 (Vitagraph, lost).
> Anyone know of these recordings ???
> Thanks, Thomas.