A song that makes you fall asleep

Goodnight by Evanescence <3

( In the morning I'll be here )

A song that you know all the words to

Phew, hard one, since there are quite a few songs I know all the words to and want to post here...
But I think I'll go with Blind Justice by Zektbach. Because it's epic. *^*

( Can you stay with me? Or just go away... )

A song that reminds you of a certain event

The R184mm remix of Hatsune Miku's Love Is War

( I can't hold my feelings back )

A song that reminds of you of somewhere

They're Coming to Take Me Away by Napoleon XIV

( I know you laughed, I heard you laugh, you laughed you laughed and laughed )

A song that reminds you of someone

Futari no Kisetsu ga from the beautiful anime Bokura Ga Ita

( Hey, I wonder if we're both the same? )

A song that makes you sad

Oh, that's an easy one. It's definitely Mayday's Eternal Summer [though there are many other songs which make me sad].

[There might be some KHR! spoilers unter the cut!]
( My proud brokenness, my painful ordinariness, finally I recall those are what I love the most )

A song that makes you happy

The Perfect Scene by Mercy Mercedes <3
( All in all it's the perfect scene and there's not anywhere that I would rather be )

Your favourite song

I don't really have a favourite song since they keep changing, but 'Eternal Snow' from the Anime Full Moon wo Sagashite might be the song I've loved longest.
( If there was an eternally falling snow could it hide my feelings for you? )