Spirit Song features Ernie's long time U.S. quartet on a set of mostly original tunes except for a few covers including Wayne Shorter's Pinocchio. "Tenor saxophonist Watts chews it up with mostly originals on this one. Recalling the spirit of Joe Farrell with the intensity of Coltrane, the material is intricate and bluesy a la Chick Corea" - Downbeat.