context: According to his Stasi documents, his friendship with the painter Kurt W.
source: From 1980, Geißler worked as a freelance composer and conductor.
reference_original: À partir de 1980, Geißler travailla en tant que compositeur et chef d'orchestre indépendant.
reference_flipped: À partir de 1980, Geißler travailla en tant que compositrice et cheffe d'orchestre indépendante.