Please check and correct that song.

After the mohair boom
The wave of simplicity will come
My soul is content with this wave
I like to be on a first-name basis with everyone.
This wave of simplicity..
This wave of simplicity.

After a roar of guns
The wave of silence will come.
We at last will hear each other,
We learn that there is you and I.
This wave of silence..
This wave of silence.

After a sintezatorny rumble(?)
The wave of undistorted pure sounds will come.
At it the popular songs
With sense in each of beeches.
This wave of undistorted pure sounds,
This wave of undistorted pure sounds...

After the dirt of thawed snow
The wave of the rain of purity will come.
After causticity of winter ice,
There will be a tenderness of summer water.
Tenderness of water...
Tenderness of water.

This wave of simplicity.
This wave of silence.
This wave of undistorted pure sounds.
Tenderness of water.

Question: whether the word "this" in a refrain is correct?
original text - muzjaka.ru/track/118894.html
I think it's correct)) It changes the meaning a little, I think, but it sounds nice)