You can buy 'a bunch of demos' at CDbaby. Holy moley!
First you will hear an acoustic guitar. You'll hear several, but of course that's just overdubbing- it's really just one. Then you'll hear this voice where this guy's trying to talk, but also be singing. So most of the notes are there but it isn't super pretty like 'aaaaaaaaAAAAAAAAHHHH!" Sometimes you'll hear a piano, or a keyboard that might be trying to sound like a piano or trying to sound like a bass guitar. Or some drums, or fake drums, which sometimes sound pretty realistic. There's that accordion on that one song too. That's awesome.
And then it's just the same voice singing all these different parts but the different parts only come in at certain parts of the songs. Sometimes it's really boring for most of the song but then the other singing parts come in at the end. It kind of varies. Oh wait, and a couple times there are other voice too, which is nice.
But the lyrics are kinda wierd though. Like sometimes it's like about feelings and it seems sad, but then the music is all fast like it's happy. Or maybe there will be a funny song and then it gets sad for only a part of it where it sounds different. But even then it's like is it sad sad, or like joking sad? But usually you can tell. And he puts in all this big words some times like just to make you go look at a dictionary or something. But usually the words do rhyme which I think is important in a song. If there's a song and the words don't rhyme it's like what was that person even thinking? That's a poem and somebody made up music and you just stuck them together. But these songs rhyme, most of them do, so you know they're good.