I've been into playing ragtimes recently, especially of Scott Joplin.
I've read in several books where they vaguely relate ragtimes as one of the early forms of Jazz. What aspects of ragtimes make them special and separate them from classical music? Certainly, it's based on classical music just like in Jazz, but are there any notable chords or progressions to tell as well?
I can tell there are wonderful syncopations, which makes them so fun to play, and significantly a lot of 7th chord, including minor and maybe major 7th?
Heliotrope Bouquet has some amazing progressions in the first theme, and Gladiolus Rag never fails to impress me with each of its four themes.