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Table 4: Structure of the fourth movement.
Section Measure (Phrase) Description Introduction 1 - 27 (10 + 7 + 10) Polyrhythm (5 3) Nocturne-like style, pedal point Motives "i," "j," and "k" A 28- 55 (5 + 10 + 10 + 3) Lydianmode Lydian mode B 56 - 89 (5 + 6 + 13 + 10) Lyrical and thoughtful melody ,(Motives "i," "j," and "k" A' 90-106(5+8+4) Lydianmode Lydian mode Transition to section A" C 107 - 120 (6 + 2 + 6) Restatement of the beginning of the first movement S121 - 131 (7 + 4) Motives "i" and "j" Lydian mode The introduction, in a quiet, nocturne-like style, is marked Lento tranquillo, with the half note equaling 46 beats to a minute. It opens with a polyrhythm, which is five eighth notes in the right hand and three quarter notes in the left hand. The triplet notes of the left hand are built of two fifth intervals, which are related to motive "c" of the first movement. The pattern of the piano part continues up to measure 17 without pedal change. Over this ostinato, the trumpet plays in slow rhythmic motion with legato (Example 36).