How was Gislebertus, the greatest Romanesque artist of all time, influential during this time period? A. influenced leaders to encourage art
B. showed attention to the build of the human body
C. created the tympanum above the main entrance of Sainte-Foys Abbey
D. created manuscripts using gold leaf
F. developed a new style of mosaics

how is this a question?

it seems to me that yes they solo on the chord changes.  coltrane for sure solos on the chord changes. instead of changing scales, they use a different method over the chord changes. this melody is very  unique but may often times even be considered simple, which is quite common in this modal  type. for example, there are changes from the key of minor to major in this piece, which makes it  unique in its own way.