These attributes enabled her to enjoy a highly successful career in New York City and London, performing heavy dramatic roles in the German and Italian repertoires.

After receiving a musical education in Stettin, she made her operatic debut in Berlin in 1889 in the title role of Tchaikovsky's Undina.

Gadski sang at the Metropolitan Opera House in New York until 1917, when the notoriety caused by the suspicious activities of her husband, Captain Hans Tauscher, American agent for large German weapon manufacturers, forced her to resign.

In 1896, she created the role of Hester Prynne in the fully staged premiere of Walter Damrosch's[15] opera The Scarlet Letter in Boston.

The first ways-and-means affair held in the (Woman's Club of El Paso) clubhouse was a performance by Madame Johanna Gadski, singer, and her accompanist, Francis Moore, in December 1916.

Legend has it that she was deported from the United States as an enemy alien, but this is not true; she spent the duration of the war living quietly in New York and Lake Spofford, New Hampshire, and did not revisit Germany until 1922.

[27][28][29][30] Gadski resumed her professional concert career in the United States in 1921; she did not, however, return to the operatic stage until 1928 when she sang in a production of Die Walküre mounted by the Washington National Opera, a semi-professional company not related to its present namesake.

[31] From 1929 to 1931, she made three tours as the star of her German Grand Opera Company, which produced dozens of performances of Richard Wagner's Der Ring des Nibelungen.

During her prime, Gadski was popular on both sides of the Atlantic[32] as a Wagnerian singer, but she was equally splendid as a performer of the more taxing Italian operatic roles such as Aida by Verdi.