Folk music is traditionally passed on by .

sounds like legend of zelda man

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.

a thesis statement is an introductory unit or a unifying element for a paper.

i know because i have this exact same question with the exact same answers and i asked my teacher.