I have over 2,000 piano rolls for sale here; I even have about 12
to 15 Chopin Nocturnes on my list, but most entries give only, for
example, "Op. 27, No. 1", and do not say "in E-flat Major" which you
ask for.  Do you know the opus and number that you want, please?

Thanks,
Kevin McElhone
Northampton, UK