Fear of getting a bad neighbour: MIMULUS, the Bach Flower Remedy.
We could use Astrological signs for the same. Pisces is the sign you need.
Cut the picture of the sign from a magazine and paste it on the door facing the neighbour. Then you will find a very good neighbour.
This is a simple solution that can be followed instead of taking Mimulus.
Geetha had a neighbour who is fond of having noisy parties on a regular basis. She downloaded the picture of Pisces from Google and pasted it on the front door facing the neighbour.
Soon after they become quite amicable. Less jarring music and even if they played music, they did inside closed doors. They became friendly and now they too want the picture of Pisces.