Sacrifice 1 foot length of space and build another concrete wall parallel to the existing wall with the noise will reduce that noise greatly. Kinda like "double glazed windows" effect.

The screaming should reduce. The tapping maybe not so much as its lower frequency. Subwoofer sound (bass) cannot be insulated easily, you're lucky its not the subwoofer noise.

This post has been edited by ceo684: Jul 9 2020, 01:25 PM