This whole album is a masterpiece, but "Blow Up" is a track that should definitely be better known. It's a vibes-piano-bass-drums quartet session with Herbie on piano that inexplicably was never released at the time, only in Japan over a decade later. It was available on CD for a while in the early 90s, but has since been deleted. The track builds on a steady, understated 4/4 groove anchored heavy bass and creative drumming courtesy of Joe Chambers. Eight minutes of relaxed heaven, with messrs. Hutcherson and Hancock engaging in sublime vibes/piano dialogue over a very catchy theme. Seek out this album any way you can!

Merely one of dozens of killer Simonal tracks (my favorite male Brazilian voice outside of Milton Nascimento), this one is a stellar example of joyous 60s pop, impossible to hear without seeing images of mini-skirt-clad girls dancing away on American Bandstand or something. Handclaps, a "pa-pa-pa-pa-pa" hook in the chorus, Stax-style horns, Simonal's deep, rich wonder of a voice, what more do you want?