Now, I'm a screenwriter/producer at heart, so whenever I'm writing, I see my stories as though they were in movie format. Often, soundtracks come with the full vision, so I often know what specific song will fit what scene. I'm a dreamer. I can't help it.
Below I shall outline what I believe will be the best genres/songs to fuel your emotions for specific emotional scenes while you are writing, if you are someone who is able to tap into music for that sort of inspiration. If not, I apologize on behalf of SC as well. lol
While his list was heavy on Adele, I love her, but I need more variety, so I will do my best to provide it right now.
Anger ----------------- Heavy Metal all the way! Metallica, Rage Against the Machine, anything where the singer is more screaming than anything, and all you hear is guitar and blood in your head (from that vessel that popped because you didn't turn the music down before you started listening). I'd even say System of a Down, but oddly "Disorder" makes me happy...but definitely, for an Alternative route, Foo Fighters "The Pretenders" and Paramore's "Let the Flames Begin" (which is in my unwritten movie soundtrack for my unpublished novel).
Pain, heartbreak------- Of course, Adele, because that's "all" she wrote about. But also, if you want to be not ashamed (because I'm not), the Backstreet Boys' "Back to Your Heart" will do it. Also, three Sara Bareilles songs that make me sad (one of which: soundtrack), "Between the Lines," "Hold My Heart," and "Breathe Again."
Depression------------ Paramore "When it Rains," U2 "With or Without You," Rihanna "We Found Love", which you might want to watch the video, too, because that will crush your soul something fierce. Any of those Punk Rock bands who write "anti-suicide" songs that are all about suicide? Yeah. Just don't cut yourself.
Longing--------------- Jeff Buckley. His voice alone will make you want him, but he died in the early 90s, so you can't have him. You will long for him, thus make you feel longing. See how I did that? "Last Goodbye," "Lover, You Should've Come Over," "Forget Her," etc.
Breaking free -------- Punk and Classic Rock. Any song about Atlanta, California, leaving, going, tearing down/breaking through something, fights breaking out.
Happiness------------- Happiness is what you make it, really. Like I said, SOAD's "Disorder" makes me happy, but so does Led Zeppelin's "Fool in the Rain". Beyonce's "Radio" (which is playing right now on my mp3 player), songs that make you get up and dance. But don't dance too much; you're supposed to be writing.
Bittersweet----------- This one is hard, too, maybe because it's so specific. Those "it's over, but we'll be okay" songs...You're with someone else, but that's best...You'd have to actually listen to the lyrics, I guess. (Late addition:) Luther Vandross, "Dance with my Father."
Some that weren't on SC's list! (Boys. lol)
Romance------------- Hello? Pop/R&B? I can make up so many combinations of what r and b stand for, but I won't. Alicia Keys "I'm Ready," "Butterflyz," Luther Vandross...OH! Hey, he's got a bittersweet song (See Late addition above). Get in enough of the mood to write the mood. Then go take a cold shower.
Fear------------------ Enter The Doors, Pink Floyd, and Marilyn Manson territories, and you're probably good. Supernatural (on CW) is particularly good at using rock music for scary scenes. I actually was scared to get in the car with a co-worker because "Bad Company" came on the radio. Youtube the scene.
Crime----------------- More Classic Rock (sorry) and maybe Speed Rock (is that the term? the fast heavy metal like Pantera?). Styx "Renegade," Bon Jovi "Dead or Alive", Boston's "Foreplay/Long Time"?? No contest! No songs that actually reference Bonnie and Clyde, because if you saw the movie, they were brutally riddled with bullets for the last 5 minutes of it, so if you're getting away with the crime, no Bonnie & Clyde references. ;)
Then, of course, as SC and some commentors mentioned, you have tv soundtracks that work well, too, so just do what feels right for you, and tap into that emotion. :)