Marcella Sembrich can be heard on a number of Mapleson Cylinders

Mediafire link for Mapleson cylinders

(These are zip files – left click the link, download the files, then unzip when downloaded)

As the LP notes, this is not high-fidelity sound. This is IRCC LP7006, issued in 1955, containing transfers of a number of Mapleson Cylinders, recorded live from the stage of the Metropolitan Opera House from 1901 to 1903.

Sembrich appears on the following tracks:

1. Donizetti - La Fille du Régiment - Rataplan (Act 2) and Duet (Act 1)
Marcella Sembrich, soprano; Marie van Cauteren, soprano; Thomas Salignac, tenor; Charles Gilibert, baritone. Philippe Flon, conductor
30/1/1903

2. Verdi - La Traviata - Sempre libera
Marcella Sembrich, soprano; Carlo Dani, tenor. Luigi Mancinelli, conductor
27/2/1903