The fourteen all-original tunes from Jack prove beyond all shadow of doubt that he is far more than "just a piano player from San Francisco"... tunes like the splendid high-energy opening title track, "Enormous Changes", feature some excellent jazz vocal work, and propel you into lovely spaces that are reminiscent of shows like "Hair" (for this old reviewer, at least). What really sets Perla apart from all the other jazzers is his diversity... listen to the driving bass & guitar on "Swimming Upstream" to hear what I mean... Jack's music will "stick in your head" for days (if not months or years) to come! It was the gentle mood created by the beautiful "Lilacs" that captured my vote for personal favorite of this release, though... the singer will invade your spirit and hold your attention for the entire 4:00 performance. This excellent July 2015 release gets a MOST HIGHLY RECOMMENDED from me, with an "EQ" (energy quotient) rating of 4.99.