*plays , Coldplay: The scientist*

"Sleepwalk" by Santo and Johnny

When you're sad, sad music just understands

Wubba lubba dub dub!

Ghosts, by Dirty Vegas.
Their whole debut album is kind of a downer actually.
I've been looking and trying to find another copy for the past couple days, to no avail. Went to a place on a whim last night and stumbled across the best damned music store I've been to in a long, long time. Found it immediately and a couple others I've been considering too.

THIS WAS ME THIS MORNING OMG

"Cancer" My Chemical Romance and 21 Pilots cover

"Exit music from a film" by Radiohead.

Actually listening to relative music or watching tv shows helps me get perspective and move on

When you listen to Jumpstyle you can never be sad

"Lonely Day" by System of a Down

Skinny love by birdy

Volatile times and Acoustic Unravel are great songs for being sad

Behind the bars by Elliot Smith. It was also the song they played in this scene

Because I'm feeling rather nostalgicly introspective and such a bright sunbeam of happiness, here's a few more for you:

Time Stand Still - Rush
Polaroid Millennium - Superior
Easy - Bare Naked Ladies
In the Absence of Sun - Duncan Sheik

"Northern Downpour" by Panic! at the Disco

Thanks @fangirl_baskervill, because this has popped back up, here's a few more:

One Day Like This - Elbow
All I Need - Awolnation
Ten Years Gone - Led Zeppelin

Lose You by Pete Yorn and Hallelujah by John Cale. Music has ways of touching the human soul/heart that nothing else can equal.