This is considered Weather Report's finest hour, and though I am a big fan of the Alphonso Johnson period (Mysterious Traveller, the perenially underrated Tale' Spinning, and Black Market), it is not difficult to see why. The addition of the virtuosic, inimitable Jaco Pastorius gifted the precocious Zawinul and Shorter with a clear equal in terms of, playing ability, compositional ability, and stage presence. The latter Jaco easily took the role of. Back to the music however, and there are a range of emotions evident in the music, namely, the joyous, celebratory staccato leaps of "Birdland", a mournful, reflective mood in "A Remark You Made" (One of Wayne Shorter's finest performances.) The only bad patch on the album I feel is the ridiculous, manic "Rumba Mama", a complete anamoly when compared with the complexity of Palladium, or the flawless, incisive bass lines on "Teen Town". Add to that, it's very listenable to the non-jazz fan. An acknowledgeable classic.