Midnight Sun Variations has been generally praised by music critics. Reviewing the world premiere, Neil Fisher of The Times wrote, "The classical canon isn't replete with works about childbirth, probably for obvious reasons. [...] So a welcome dawn shone on Outi Tarkiainen's Midnight Sun Variations, inspired by the birth of the composer's son." He added, "It's very beautiful, chains of shimmering percussion setting off a kind of twinkling relay contest, before bigger, thicker lines are drawn by the strings, pulsing almost like a Steve Reich soundscape. The expressive energy of the piece hides its intricate effects: Tarkiainen doesn’t get bogged down by details and her voice comes through strongly."[2] Robert Beale of The Arts Desk also praised the piece, saying that it "builds to a massive climax of sound, with echoes (it seems to me) of the textures, harmonies and energy of some of Sibelius's depictions."[3] Pierre Ruhe of ArtsATL similarly described it as "gorgeous and suggestive of muted, shifting colors that are at once eerie, tender and affectionate. Nothing tangible actually happens, so it feels like a scene that's just outside the listener's perspective. Perhaps we're witnessing someone's reactions to a transcendent experience."[4]