One of my favorite Christian songs is called Redemption by August Burns Red. They are Christian "metal" or "hardcore" they sing and they have scream type things.. but it isn't anger, it's their way of showing passion and love. They are very passionate about their music. I have seen them in concert 3 times and they are in no way 'devil' worshipers like many people believe. I have met the singer and he is a great person, and a Christian like you and me.
"I am just a man with a heart and sinful hands.
I am a fallen victim.
Lord, show me the way.
I ask of you Father, let my words be your words.
Let my thoughts be your thoughts.
To you, I give my praise.
Show me the way.
Take me in your arms.
Never let me go.
Lord, show me the way, as I give myself to you.
Never let me go.
Hold me with your everlasting love.
Be my strength.
Be my voice.
Be my glory.
Set me free."
I believe that counts as Christian music.