Keegiam, classic Chick Corea tune. I think I know what you mean, but “Spain” has no time changes at all. After the slower introduction and the tune starts there are no time changes at all. It stays in 4/4 the whole time. The feeling of time changes is due to the very syncopated and “choppy” melody. If you haven’t heard it, the original is classic.
https://youtu.be/sEhQTjgoTdU
Here it is:
https://www.scribd.com/doc/217761461/chick-corea-spain-pdf
https://youtu.be/sEhQTjgoTdU
Here it is:
https://www.scribd.com/doc/217761461/chick-corea-spain-pdf