These sessions show Corea finding his voice before he became the household name.
Armando Corea was still figuring out who he was as a bandleader when these sessions happened. He'd spent time absorbing bebop and hard bop from the inside, playing alongside some serious musicians, and by this point he was ready to step into the spotlight on his own terms. The Complete Is Sessions captures that moment—not quite a debut, exactly, but early enough that you can hear him working through ideas that would define his later work.
What strikes you immediately is how straight-ahead these recordings are. Corea's playing here has a crisp, direct quality. He's not yet the cosmic explorer he'd become, not yet diving into fusion or electric instruments. This is acoustic piano jazz, rooted in the traditions he'd learned but with his own touch coming through. The standards and originals move with purpose and clarity. He's clearly listening hard to what's happening around him, responding in real time, which is what jazz is supposed to be about.
For listeners getting to know Corea, this isn't the place to start. Go to his later work first—something like Maiden Voyage (1965) or Now He Sings, Now He Sobs (1966)—where his vision is fully formed and the playing is more assured. But if you're already familiar with his major records and want to understand his roots, these sessions are genuinely worth hearing. They're honest, unpretentious music from a young pianist who had something to say and was learning how to say it.