"Forward-thinking jazz vocalist Kurt Elling follows up his progressive 2011 covers album The Gate with his equally ambitious 2012 release ... With his supple, velvet-lined voice, it is perhaps not surprising that it is the more introspective moments like Elling's afterglow ballad version of the Al Dublin/Harry Warren standard "I Only Have Eyes for You" and his atmospheric reworking of Carole King's "So Far Away" that really stick with you. Ultimately, though, it is [the album's] diverse stylistic quality, both in the source material and Elling's arrangements, that make The Brill Building Project one of his most interesting albums".