The Guardian, Martin Kettle | 2 July 2025
„Among a strongly cast group of principals, Kateryna Kasper brings an ideal combination of soprano richness and soubrette brightness to Mélisande.“

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The Telegraph, Nicholas Kenyon | 30 June 2025
„Ukrainian-German soprano Kateryna Kasper as Mélisande is an outstanding discovery here, with a voice fuller and richer than we may be used to in this role, but wonderfully rounded, full of anxiety, and heart-rending at her death, prostrate in a glass box (recalling the sleeping Tilda Swinton at the Serpentine all those years ago).“

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Gramophone, Alexandra Coghlan |  9 July 2025
„Kateryna Kasper’s Mélisande – unusually full-voiced, with little of the character’s other-worldly fragility – manages to remain ambiguous without ever becoming blank. By turns bewildered and certain, fey and in focus, she’s the magnetic north for Brett Polegato’s Golaud […].“

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The Spectator, Richard Bratby | 2025
„Kateryna Kasper, a Mélisande who gave nothing away, […] was as enigmatic (and as compelling) as Debussy and Maeterlinck surely intended. Bell-like and bright at volume, she placed her quieter phrases gently into the silence – a sonic equivalent of those solitary light sources, throwing the surrounding performances into powerful relief.“

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Opera Canada, Natasha Gauthier | 2 July 2025
„Ukrainian-German soprano Kateryna Kasper’s […] is a voice that immediately makes you sit up in your seat: bell-clear and spinny, with an unusual, almost veiled quality that floated above Debussy’s lush orchestration like a cloud.“

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The Stage, Amanda Holloway | 30 June 2025
„Kateryna Kasper as Mélisande is wide-eyed and innocent in her white lace dress, though there is nothing girlish about her warm soprano.“

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musicOMH, Sam Smith | 29 June 2025

„As Mélisande, Kateryna Kasper reveals an extremely intriguing soprano. There is a great purity to her line, but it is supported by just enough sumptuousness to make for a glistening and almost otherworldly sound“.

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Seen and Heard International, Clive Peacock | 30 June 2025

„Kateryna Kasper, making her Longborough debut with her fine soprano voice, catches the eye immediately as Mélisande. Her experience of a decade with Opera Frankfurt equips her for both contemporary and traditional roles. She carries the show and manages to sing splendidly from her death bed – not an easy task for some! […] Her singing is exquisite. She commands the stage when necessary, showing a softer side when negotiating with Karim Sulayman singing Pélleas.“

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Reaction Life, Gerald Malone | 4 July 2025

„Kasper was the ideal Mélisande. A mistress of concealment. And always a character of substance. It’s a mistake to portray Mélisande as a Barbie victim. Ogilvie and Kasper got the role pitch perfect.“

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OperaScene.co.uk | 30 June 2025
„Making her UK debut, the Ukrainian-German soprano Kasper’s Mélisande is gently luscious, directed to be always deeply melancholic, and while we see the depth of her relationship developing with Pelléas it is always suggested rather than overt.“