|Even on this shorter EP, saxophonist and composer Kamasi Washington displays a tireless ambition with his compositions, performance, and spiritual approach. Harmony of Difference was originally part of a multimedia work that illustrated how forces that seem to be working in opposition could come together as a composite of complex beauty. This was illustrated in the original exhibit by a series of projected paintings (created by artist and Washington’s sister Amani Washington) that were gradually overlaid to form an abstract image of a face. Musically, Washington explores the theme by writing a series of five short pieces that are also folded together into a lengthy, recombinant suite. The structure lends a sense of déjà vu, as motifs and riffs and melodies are introduced and then reappear later. Where musical counterpoint was the driving idea for the compositions, Harmony also feels like a meditation on memory, association, and vantage point. Hearing it in one sitting is like looking at a sculpture from multiple angles and suddenly the three-dimensional form clicks in your mind and you apprehend the whole. But what ultimately binds Washington’s work together is his spiritual approach. Following on its massive and sometimes unwieldy predecessor, Harmony of Difference, a brief and concentrated blast of emotion, is a great place to catch up on what Washington has to say.