During her time studying political science, Sonja entered the local electronic music scene in Vienna. In the 2000s she was active as DJ ReSista in the Drum&Bass community. In recent times she focused more on Breaks and Breakbeat Hardcore (Oldschool Rave).
In Mai 2018 she published an open letter ("Liebe Musikszene. Eine Moralpredigt") that criticised right-wing tendencies associated with Red Bull and the events they're hosting. The following discussion lead to several consequences in Germany and Switzerland, regarding clubs and festivals.