Heinsohn sang in concerts and operettas at fourteen, and soon entered the College of Music of Cincinnati, where she advanced to the highest position among vocal pupils, gaining attention of the faculty and music lovers. Her teachers were La Villa and Stefanone. Later, she became a pupil of Max Maretzek, under whose guidance she began to study Italian opera.[1]
Her first appearance in opera, after having sung many times in oratorios and concerts under Theodore Thomas, was under James Henry Mapleson, when she appeared as Leonora in Beethoven's Fidelio. Soon after, she went to Paris, where she became a pupil of Mme. Lagrange, under whose direction she completed her studies. After her return to this country, Heinsohn appeared in German opera in the Metropolitan Opera House, New York, and in many concerts, both in the East and the West.[1]
She had a dramatic soprano voice and her repertory was a large one, consisting of hundreds of songs and dozens of operatic roles.[1]
