Considering this is a music forum, I thought you experts can help me with this.
I have a very stressful friend, who has some anger problems here and there, but he claims that music calms him down, and I also agree with that. Can any of you guys help me out with building a list for him in the event that he unfortunately gets pissed off at something lol? Any help at all is greatly appreciated. If possible, are there any songs that sound like these in any way?

Some things that sound like...
Let Down-Radiohead
Pyramid Song-Radiohead
The Noose-A Perfect Circle
Room of Angel-Akira Yamaoka
The Day the Whole World Went Away (Quiet Ver.)-Nine Inch Nails
So Klingt Liebe (x-mix)-And One (That's a german band so it's not well known)
Feel Good Inc.-Gorillaz
El Manana-Gorillaz
Hong Kong-Gorillaz
Stuff Related to Incubus
Some from Interpol

Pretty much those songs that kinda like....make you feel good. I hear Pink Floyd is good, but I never heard a lot of his stuff. Thanks in advance for those who help xD