n A Silent Way proved to be both timely and timeless. Recorded in February 1969 and released on LP as two side-long jams, it introduced ideas that what would become common to many of Miles’ albums in the years ahead: a rotating cast of sidemen that changed track by track, which meant—at least on studio recordings—the idea of a consistent band was no longer a priority. New names swung into Miles’ orbit, each bringing a new sound and sometimes instrument, for one tune, perhaps to return on another album.