Bill Evans wrote in the LP liner notes, "Miles conceived these settings only hours before the recording dates." Evans continued with an introduction concerning the modes used in each composition on the album. "So What" consists of two modes: sixteen measures of the first, followed by eight measures of the second, and then eight again of the first. "Freddie Freeloader" is a standard twelve-bar blues form. "Blue in Green" consists of a ten-measure cycle following a short four-measure introduction. "All Blues" is a twelve-bar blues form in time. "Flamenco Sketches" consists of five scales, which are each played "as long as the soloist wishes until he has completed the series".