Playing OutsideAlong with rhythmic displacement, playing outside of the underlying tonality is anotherhallmark feature of Tristano’s style of improvisation and results in his highly originalapproach to chromaticism. In “Line Up,” the use of chromaticism is pervasive, yet themanner in which Tristano controls it deserves attention. Just like his use of rhythmicdisplacements, Tristano’s use of chromaticism is elegant and logical. When his linestemporarily leave the underlying tonal area and venture into a chromatic space, they retainstrong melodic and harmonic identities and remain inside of the outside key areas. Figure26.3 compares two phrases from mm. 25–27 and 63–68.“LINE UP” 395