For each chapter I use a line or a phrase from a song or the whole song as inspiration. The only problem is, that I can't find the song of the first chapter anymore.
The other songs are:
Supergirl by Reamonn
Why why why by Shawn Medes
Demons by Imagine Dragons
Lemon Tree by Fools Garden
Black board by NANO
Go to the west by s00278366 feat. NANO
The Emptiness Machine by Linkin Park