““Irene Roberts, as Sieglinde, causes a state of emergency. Her dreamlike timbre, her voice, both penetrating and flawlessly beautiful, and her phenomenal diction qualify her as one of the greatest singers currently on stage.””

Berliner Morgenpost

““Irene Roberts was nothing short of sensational as Brangäne. Her soprano-tinged mezzo is capable of an extraordinary range of color. Having already made a formidable impression as Kundry both here and in Munich, she seems to have few rivals in this repertoire her forthcoming Sieglinde in next summer’s Die Walküre in Munich is certainly one of the most anticipated of the year.””

Music OMH

“Dorabella, sung by exceptional mezzo-soprano Irene Roberts...her voice was abundant, the tonal leaps from high to low, low to high, amply displayed her command of the music, as well as conveying emotional oscillation. Physically flexible on stage and pouty, flirty, coy, she contrasted exceptionally well to Cabell's more statuesque persona.”

Lois SilversteinOpera Wire, Così fan tutte at San Francisco Opera

“Roberts displayed all the necessary elements for this iconic role - a warm, sultry mezzo voice, with power and expressiveness, and an ability to project a woman who is at once capable of dominating men publicly while privately showing vulnerability and insecurity.”

William BurnettOpera Warhorses, Carmen at San Francisco Opera

“Roberts made a moving heroine, really articulating her emotional distress. Roberts has a fine, focused mezzo-soprano voice with a plangently expressive sense of line that she used finely in the lyric dialogue and in her moving death scene.”

Robert HugillOpera Today, Il Proscritto with Opera Rara at Barbican Hall