Aaron Goldberg and Guillermo Klein

Every bit the travel document its title implies, Bienestan, a sprawling joint effort released in June by pianist Aaron Goldberg and composer-arranger Guillermo Klein, moves from quiet lyricism to carnival-like euphoria at the turn of a key or the shift of a time signature. Goldberg has likened the project to a Miles Davis–Gil Evans experiment, with Klein (an acclaimed keyboardist and leader of Los Guachos) as the guiding hand and Goldberg as the ably outfitted vessel. The pianist delivers with impeccable sensitivity, whether he’s trading phrases with Klein (on Fender Rhodes) on the ballad “Anita,” or melding with drummer Eric Harland on the epic “Manhã de Carnaval (Orfeo Negro).”