But these are the two songs I think of when I think of Ska, I'm not a ska expert, but I'm interested in Ska. I know modern rock seems to be modal, while jazz and early rock seem to be based off chords and chord changes, what about ska? What music theory goes into ska? What are the common chord changes? They seem to be soloing over chords like in jazz. Basically any advice you can give me into understand how to write and play ska.