After collaborating on “Coffee” more than a year ago, the Mountain Goats’ John Darnielle and underground hip-hop champion Aesop Rock have reversed roles and the latter has played guest to the former’s host. Which is to say, Darnielle gave Aesop the tracks to “Lovecraft in Brooklyn” (cf. the album version), which appeared earlier this year on the Mountain Goats’ Heretic Pride. The result is…strange. Darnielle’s lyrics and vocals make it not the chillest groove, even as Aesop Rock’s mix tries to force it in that direction, which may be precisely akin to the paranoid displacement H.P. Lovecraft felt upon moving to New York.