Soundproofing
http://bestsoundproofing99.bravesites.com/entries/general/stc-soundproofing-using-rubber-soundproofing-sound-insulation-to-make-wall-surfaces-quiet
You have a rock band, and also no location to practice. Well, you could exercise in your cellar, garage, or bedroom yet you reside in a condominium, or a detached house with next-door neighbors crowding you on