Pachelbell's Canon in D was something I used for several years for my LifeVision. I don't like to use "popular" music anymore because of the trigger that it is.
I can go to a wedding and hear it and suddenly I feel like jumping up and shouting..
I AM A POWERFUL, PASSIONATE, and INSPIRING WOMAN...............
LOL

(know what I mean....)
(I'm joking)
Yes....I got 10 CD's of Baroque only at Sam's club for $19.95 and I've picked up Classical CD's at bargin tables for a few bucks. But only a few of the songs will achieve the Alpha..
But if you just want to "feel good" and aren't worried about the subconscious effect...use whatever!