[1][6] Her name was first credited in a programme for an 1858 production of Adam Oehlenschläger's historic tragedy Hakon Jarl hin Rige as Inger.

[7] After playing smaller roles with the company, she made her formal debut at the theatre on 20 December 1860 as Nannette in a production of François-Adrien Boieldieu's Le petit chaperon de rouge.

[6][7] Over the course of her career at the Royal Danish Theatre she performed as Rosina in The Barber of Seville, Susanna in The Marriage of Figaro, Papagena in The Magic Flute, Anna in Der Freischütz, Benjamin in Joseph and his Brethren, Siebel in Faust, Zerlina in Don Giovanni, Venus in Tannhäuser, and the Queen in Hans Heiling.

[4] Although primarily known as an opera singer, Levinsohn also performed in early vaudeville productions, including Christoph Ernst Friedrich Weyse's musical comedy Et Eventyr i Rosenborg Have and Johan Ludvig Heiberg's Recensenten og Dyret.

[2][7] Eventually, her health forced her to retire in 1879, having made her final performance as Marie in La fille du régiment on 6 June.