 The ensemble passages are more structured.There were chords, but apparently they were optional; it is more accurate to say that the ensembles consist of a progression of modes rather than chords, with mode changes signaled by Coltrane, pianist McCoy Tyner, and trumpeter Freddie Hubbard.By comparison to "", "Ascension" features a much expanded "front line", with two altos, three tenors, and two trumpeters.