She belonged to the pioneer generation of performers of the Royal Swedish Opera.
Hedvig Falk belonged to the first group of singers hired at the foundation of the Royal Swedish Opera in Bollhuset in 1773.
There was an initial difficulty to enroll female singers because the profession had a low status in the 18th-century.
Wigert also illustrate the fact that people from the upper class participated in the Opera project of the king.
Similar to the case of Elisabeth Olin, Wigert was a member of the upper class, and though she herself was willing to participate, her employment was delayed by the disapproval of "Two old powder-witches" in her family.
Eventually, she was given a contract which stipulated that she would be allowed to resign whenever her family wished her to, as long as she participated in the inauguration performance.