[1][5] Morgan made her debut as a harpist in the 1870s at age 11/12,[8] performing alongside prominent Norwegian violinist Ole Bull.

[5] As a soloist, Morgan appeared with many of the preeminent musicians and conductors of her time, including Fritz Kreisler, Moritz Rosenthal, Teresa Carreno, Italo Campanini, and Horatio Parker.

[5] In addition to touring widely as a soloist across the United States,[11] Morgan frequently joined her father for joint concerts early in her career until his death.

[5] In 1924, a grand "Golden Jubilee" celebration was held at Carnegie Hall to honor Morgan's 50 years on stage as a harpist.

Morgan, then age 64, was crowned with silver hair and seated at a golden harp, presenting "a picture of uncommon charm.

His bust portrait of the young Morgan, completed around 1880, became one of Warner's most celebrated works and is part of the collection at the Metropolitan Museum of Art in New York City.

[2] Critics praised how Warner integrated classical Greek sculptural influences like the tilted head, wide eyes, and braided hairstyle with naturalistic modeling of Morgan's delicate facial features.