⚫ Anthony Tommasini for The New York Times: Mr. Wuorinen has written an intricate, vibrantly orchestrated and often brilliant score that conveys the oppressiveness of the forces that defeat these two men, whose lives we follow over 20 years, starting in 1963 when they take a summer job herding sheep on Brokeback Mountain. But the same qualities in Mr. Wuorinen’s music that can captivate listeners — ingenious complexity, lucid textures, tartly atonal harmonic writing — too often weigh down the drama in this work. To his credit, there is not one saccharine or melodramatic touch in the score. Still, you yearn for the music to sing, to convey the moments of romantic bliss and sensual pleasure that the uptight Ennis Del Mar and his more daring companion Jack Twist experience. For long stretches, though, Mr. Wuorinen’s music comes across as a little too brainy and relentlessly busy.
⚫ Andrew Clements for The Guardian: [H]owever striking it is, Wuorinen's rather dry, often etiolated music, sometimes recalling late Schoenberg, sometimes serial Stravinsky, rarely transcends the text enough to enhance the drama rather than just adding rather terse punctuation and commentary to it. The tenebrous opening certainly signals the tragedy that is to come, but when it does, with Jack's death almost two hours later, there's nothing to deliver the gut wrench needed; Ennis's final monologue merely hints at the expressive world the music might have explored. [Wuorinen’s] generally sparse scoring at least means that a great deal of Proulx’s text gets across in the performance, but that’s a mixed blessing. There are far too many words: her original short story is a model of economy, but where most librettists pare down their sources, Proulx too often expands hers, adding explanations and back story, even whole scenes, that are not to be found in her original narration. Some subsidiary characters just aren’t needed, and though the opera is played straight through, in two acts of 11 scenes each without an interval, the pacing is uneven and the drama sometimes holds fire just when it needs to be moving remorselessly on.
⚫ Shirley Apthorp for The Financial Times: [T]here is nothing particularly provocative about Annie Proulx’s stark short story of two men sharing an impossible love in an inhospitable environment. It is very much the stuff of operas. Since Proulx wrote Wuorinen’s libretto herself, and the creative team stayed well away from the temptation of echoing Ang Lee’s film, the opera stands on its own. It is more explicitly tragic than the story. Ennis barely speaks at the beginning, but his part evolves as the work progresses, until finally, after Jack’s death, he can express his love in lyrical lines. Proulx’s text gives her characters words that were only implied in her original tale. Too many words; less would have been more. A superlative author is not automatically a consummate librettist.
Wuorinen’s score is as perilously close to sentimentality as it is possible for atonal music to be. Though he cites Moses und Aron as an inspiration, the music is unashamedly pictorial, echoing early Alban Berg more than late Schoenberg.