Ha! I delurked to join in.. Songs got me thru, sing it loud and sing it proud sister! 
I recommend starting a spotify account if you want to have your own access to music. I listened to music constantly.
In the beginning, I was in such shock tho, all I could bear was this digital radio station called Chill, it was great actually. All the songs were beautiful mellow, acousticie numbers that seemed to have really positive messages!
Nina Simone- here comes the sun, John Martyn sun shines better on a brighter day etc it was really helped me.
After that when I started listening to my own stuff again- My songs were more about rebuilding strength and empowering, rather than getting angry..
But with the exception of Whitney Houston 'It's not right but it's ok' which is a frikken awesome pissed off song.
I then cancelled out the rage with her song- 'My love is your love' gorgeous happy song restored my faith in the love I want to have in future etc..
Defying Gravity from Wicked..( 'and you can't pull me down.. and if I'm flying solo at least I'm flying free, to those who ground me take a message back from me!!' )
YES!! Such a great anthem! Seriously- if you jump around to this singing along in an overly dramatic musical theatre way- you burn calories and feel amazing. Win.
Another one Us Amazonians by Kirsty Maccoll ( of blessed memory) I would literally sing this all day, thinking of amazonian strength to get through it.. plus another good one for dancing around to!
ROAR powerful amazonians!
I just adore Kirsty, and recommend the whole of that Tropical Brainstorm album and also the Kite album, she was strong inspirational,funny songwriter.
Kate Bush- Big Sky
'i'm looking at the big sky.. you never understood me, never really tried' Love it! (blimey tho, how bonkers is that vid? Love our kate )
and Running up that Hill .. beautiful.
These were /are my constants.. plus lots of Foo Fighters.
Oh my goodness totally just remembered a bloody brillo song is by Ani De Franco- which basically goes 'Fuck you and your untouchable face' it's kinda like a mellower version of 'you oughta know'
Also Indigo Girls - Closer to Fine, is a great singing it out song.. not really about anything to do with anything but is very empowering.
Oh and one I heard recently which made me whoop was this, further down the road song, maybe..
Destiny's Child - Independent woman
and of course SURVIVOR!!!
Yeeahh..
Will be back with some more..!! I really feel dancing and singing loudly and badly really helped me as much as anything.. Good luck OP.
(sorry about the ugly links, couldn't work out how to do clever linking)