Does anyone know what the name of the music is in episode 6 of Parasyte -the maxim- from 7:19 to about 8:30? I can't seem to find it on the official soundtrack, maybe I'm being a dumbie but if anyone has the answer then fair shout!!

It plays as Shinichi is setting off


   to get revenge for his mum's death.
Yes. The song you are looking for is named "Solitude" by Ken Arai. It's part of the official soundtrack.

Here's a link to the song on YouTube.