Stereogum said "Björk’s seismic vocal proved a perfect counterpart to Dirty Projectors’ staggered, staggering needlepoint vocal harmonies, and a perfect mouthpiece for Longstreth’s melodies." In an interview published on the site, Longstreth mentioned he wrote "the Housing Works songs... in about a week" and said it was a "sister" project to Bitte Orca. In April 2010, nearly a year after the concert was held, both acts recorded an updated version of Mount Wittenberg Orca at Brooklyn's Rare Book Room studio. The money raised from the self released digital EP was donated to the National Geographic Society Oceans Initiatives, which helps create international marine protected areas. The album was released on 30 June 2010. Lyrics and even song titles changed from the original concert to the recorded album. The song "Ever Onward" was released as "On and Ever Onward", "Until the Day I Die" was released as "When the World Comes to an End" and "Singing Through a Tinted Window" became "Sharing Orb". Over a year later on October 24, 2011, Mount Wittenberg Orca was released on CD and vinyl by Domino. Critical reception Mount Wittenberg Orca received positive reviews from music critics. At Metacritic, which assigns a normalised rating out of 100 to reviews from mainstream critics, the album received an average score of 79, based on 15 reviews, which indicates "generally favorable reviews". AllMusic called the pairing of Dirty Projectors and Björk "inspired" and a "brief but powerful statement" that "brought out the best" of both artists. Tiny Mix Tapes praised the minimalist direction of the EP and highlighted the vocal talents of Dirty Projectors' Amber Coffman in addition to the acute environmental awareness of the lyrics. Drowned in Sound heavily praised the work of David Longstreth and Dirty Projectors in general, saying the EP sounded better than their previous long play, Bitte Orca. They also praised the Longstreth's use of Björk, labeling her vocal contributions "immediately arresting" while noting that the "strength of the songwriting... wouldn’t suffer were she not a feature." PopMatters said that Björk "fit in perfectly" with Dirty Projectors and ultimately noted that while the EP is "an acquired taste... no one else makes music like this." Writing for the Independent on the occasion of the EP's physical release in 2011, Andy Gill compared Mount Wittenberg Orca favorably against Björk's newest album at the time, Biophilia, describing it as "a welcome compensation for those who,