I have some Mahavishnu Orchestra. Will have to dig them out. Been awhile.
Was listening to Al Di Meola with a buddy of mine on CD. It's interesting, not my thing but tolerable. It is very well recorded as is a lot of jazz. I just don't listen to it very often. There was a deep synthesized note or sound that had the single strongest impact I've ever heard on a recording. We were listening quite loud and made my buddy and I both smile.
I'll have to check Oregon, much of this is unfamiliar to me but I'll try anything once. :)