In fin-de-siècle Vienna frustrations with ‘lifelessness’ began to boil over. Unlike previous generations of opera-goers, however, the Viennese did not so much fear singers becoming automata as desire dramatic performance that foregrounded humanness and subjectivity. Critics increasingly fetishized vitality – manifested in characters with dramatic integrity and singers capable of nestling themselves in their roles – and by 1910 wanted singers to communicate their own interiority and ‘wilfulness’ as well. This article uses the reception of the soprano Marie Gutheil-Schoder (1874–1935) to demonstrate the growing currency of these imperatives. A controversial hire for the Hofoper, she was initially disparaged by critics as vocally ‘weak’, but the Viennese gradually ‘learnt to love this voice’ for the way in which it could be pressed into the service of the drama and her will. I explain her changing fortunes, arguing that opera-goers valued certain voices in accordance with evolving conceptions of characterization, acting technique and human subjectivity.