What is the name of the fast organ song in Parasyte -the maxim- ep17 at 6:35? The song is found in episode 17 of Parasyte -the maxim- at 6:35 when a homicidal parasyte says 'one of us has died'.

The song is also found in episode 16 of Parasyte -the maxim- at 10:54 when Migi says 'shit' and Shinichi says 'no way'.

Thank you for your answer.
The song you are looking for would be Full Moon

As Pratyush mentions in the comments, it is available on special track cd.