Following her debut at the Vienna Staatsoper as the title role of Jenůfa, the Financial Times praised Irish soprano Sinéad Mulhern as having "precisely the combination of innocence and depth that the title role demands, and a voice capable of representing Jenůfa’s huge emotional journey without ever losing its purity of tone."
Sinéad Mulhern was acclaimed for her interpretation of the Governess in The Turn of the Screw: "Intentionally or not, Sinéad Mulhern resembled the great British operatic icon, Kathleen Ferrier, whose public persona embodies the attractive fusion of passion and naivete of the governess who is in far over her head with the paranormal activities and demonic possession. The balance between articulation of the words and vocal weight (necessary to telegraph the importance of the opera’s subtext) is rarely achieved, but Mulhern came closer than most."