3 Give one spatial difference between the architecture of the central court of the East Building of the Na Gallery of Art by I. M. Pei (text fig. 7-5) and the interior of the National Gallery's Rotunda by John Russel
(text fig. 7-6).

answer; /// i believe the correct answer is (critical control point(ccp); /// good luck

i'm not sure i completely understand your question, but i will do my best.

i think the answer you are looking for is sequence. (see below)

a repeated melodic fragment would be best defined as repetition, while repeated chords (different or the same) could be a chord progression. however, you then mentioned the chord and melodic fragment beginning on higher or lower pitches, in that case, the answer could be best defined as a sequence. the definition of a sequence is as follows: "the restatement of a motif or longer melodic (or harmonic) passage at a higher or lower pitch in the same voice."

let me know if this !

the previous answer given.