Is the structure of art music (classical baroque etc) the same as popular music with the musical concepts?
No, there’s more than just one type of structure. There’s Sonata Allegro form which is Introduction First Theme Second Theme Development Recapitulation Coda Then there’s Rondo Form which could be considered a little similar to song form(i think that’s what it’s called). It’s in ABACAD and so on and so forth. A Fugue has an Exposition where the subject is exposed in all voices and is constantly going under development Theme and Variations is an easy form to recognize, You state a theme then you create variations after that There’s plenty of other structured forms but I won’t get into that. There’s also free form like Rhapsodies and Nocturnes.