Don't know if you're still looking for tips on how to play the "Santana Style
," but here goes! :)
In my opinion, the best way to learn to play like Santana is to simply copy some of his licks. I'd start with Evil Ways
, Oye Como Va
, and Black Magic Woman
As far as theory, there's not a whole lot involved. (And I would guess that Santana is more of a "gut" player, not a "head" player.) He generally uses minor pentatonic scales, with an occasional extra note thrown in.
What is MOST tricky -- and unique -- about Carlos' playing is his timing. He has a signature way of playing around with standard phrasing that gives him his own sound. When you're learning his riffs, listen to them actively, to really get them in your head. Once you can "think" the solos, then start learning them.
Good luck! More info here: