Rock musicians with musical education.

Reminds me of the old joke.

How do you get a rock musician to stop playing?

Ans: Put sheet music in front of him.

Cheers,
I remain

Here is a quick short list....

Kenny Aronoff - Drummer for John Mellencamp, Smashing Pumpkins and the who's who session drummer....graduated BM Univ. Indiana.

Aimee Mann - Berklee College of Music, Boston

Elliot Easton - The Cars (guitarist) Berklee College of Music.

Gregg Bissonette (Drums) -Santana, Toto, Andy Summers,, Tab Benoit, David Lee Roth, and many, many more....Graduate North Texas State University.

Vinnie Colaiuta (Drums)- Sting, Zappa, Joni Mitchell, Robben Ford, Chick Corea and just about any artist you can think of.....Berklee College of Music.

Gordon Summnoner...aka Sting....remember he was an engligh teacher before he formed The Police.

Steve Smith (Drums) - Journey, Vital Information, Jean Luc Pontey, Bryan Adams, Larry Coryell...Berklee College of Music.

maybe I should learn how to spell ENGLISH....sorry.

Marakanetz actually asked for musicians whom studied music rather than went to university in general.
In terms of general education the list is rather large,Queen being arguably the most qualified band in the history of rock.
A list of musicians who went to Art college is probably longer than those who studied music.
In terms of studying music I can't think of any who weren't mentioned outside the obvious ones Jean Michel Jarre,Rick Wakeman and Elton John,I'm sure keyboard players are the most common.
However it is not a subject I claim to be an expert on.
What was common in England post-war amongst the middle and upper classes was a general education which involved musical studies either part-time and/or in their leisure time.The post-Elvis and then post-Beatles boom were full of such individuals-Procol Harum,Genesis etc.
Nick Drake one of my favourite artists came from such a background but did NOT study music rather English at Cambridge University.