The Jazz Sessions spotlights Andrew Hill, a great and even ground-breaking composer and pianist. While many of his contemporaries were totally jettisoning the rhythmic and harmonic techniques of bop and hard bop, Hill worked to extend their possibilities; his was a revolution from within.
He exhibited a determined command of his materials, however abstract they might sometimes be. His composed melodies were labyrinthine, rhythmically and harmonically complex tunes that exhibit a sophistication born of mastery, not chance or contingency.
As a pianist, Hill had a flowing melodicism and an elastic sense of time. Like his composing, Hill's playing had an ever-present air of spontaneity and was almost completely devoid of cliché.