egor
Bluelighter
Bad Religion does the same for me

There is something about beatles music that put me in an awesome mood while im trippin!!
Try listening to Beatles Love trippin. Its awesome!!:D
I think they are overrated, that's just me though...
I'm a deadhead, so that is my personal fave.
"The Beatles is amazing while tripping"
that's like saying "Lasagna is amazing with cheese on top".
It's just one of those known facts. Same with Pink Floyd, Jimi Hendrix, The Doors, King Crimson, the 13th Floor Elevators, The Beach Boys, The Stones, Velvet Underground, The Zombies and literally a TON of others in the classic and psychedelic rock era.
The bottom line is good music and tripping go together like beer and salty snacks. Don't give the trophy to the beatles though, they've had their fair share of compliments IMO. There is a shitload of more recent music which is a sort of revival of the trippy sound of the late sixties (or at least very much inspired from it).
Try The Brian Jonestown Massacre, The legendary Pink Dots, Spiritualized, The Apples in Stereo.
Have fun!