 Several Caruso recordings were also released by RCA Victor on their 45-rpm format during the 1950s.Caruso recorded with several sopranos including Nellie Melba, Geraldine Farrar, Amelita Galli-Curci, Frances Alda, Emmy Destinn, Alma Gluck, Frieda Hempel, Luisa Tetrazzini, Johanna Gadski, Marcella Sembrich, and Bessie Abott.Among the mezzo-sopranos and contraltos with whom Caruso made records, are Louise Homer, Minnie Egener, Flora Perini and Ernestine Schumann-Heink.