Each song on Fool Metal Jack is very distinct from the last, bouncing from genre to genre, and a person who didn’t know they were listening to an album by one band couldn’t be blamed for thinking they were listening to a mix or compilation of several very different bands. That in and of itself is the best part and biggest flaw of the album. Each song is well written and impeccably arranged but the album often bounces along from one style to another, sounding as though each song is paying tribute to various influences instead of combining them all to create a distinct sound of its own. The Jamaican accent on “Ganja Man”, a reggae song and the only song in the band’s catalog to even hint at a Jamaican accent or reggae, for that matter, proves my point. The good thing about it is that the band seems to be constantly searching, bringing a restless artistic spirit to every song on the album. Many bands from the late ‘60s have reunited in various forms throughout the past 20 years but I can’t think of a single one that made even remotely interesting music in their reunited forms. Os Mutantes are still creating music that is compelling when all of their ‘60s contemporaries have long since faded away. Continuing on with a hunger to constantly challenge both themselves and their audience, this version of Os Mutantes upholds the band’s legacy and legendary status.