Producers note: "We have re-sequenced these tracks to allow the listener to become part of the development of the music and to follow John Coltrane’s evolutions to the final climax on “One Down. One Up”. To be able to present the performances on one CD only, we have edited the introductions, announcements and applauses to reach a concentration on music only and a time just under 80 minutes. The mastering of Michael Brändli contributed to a much better sound of these exceptional performances." – Werner X. Uehlinger