On 6 August 1880, Augusta Schou married the naval officer Otto George Lütken (1849–1906).
[2] After training under Carl Helsted (1818–1904), Lütken made her début at the Royal Theatre in 1876 as Vilhelmine in Édouard Du Puy's Youth and Folly (Ungdom og Galskap).
Exhibiting an unusually high and clear soprano delivery, she immediately attracted attention.
The tall, slender blonde impressed her audiences even more as the Queen of the Night in The Magic Flute, as Zerlina in Don Giovanni and as Susanna in The Marriage of Figaro.
By contrast, in Copenhagen she continued to please her audiences with coloratura performances of Gilda in Rigoletto and Marie in Donizetti's La fille du régiment.