Soundproofing Tips
https://elliottvxzj603.wordpress.com/2019/08/05/stc-soundproofing-making-use-of-rubber-soundproofing-sound-insulation-to-make-walls-silent/
You have a rock band, as well as no location to exercise. Well, you can exercise in your basement, garage, or bedroom yet you live in a condominium, or a detached home with neighbors crowding you on both sides.