Living in an apartment with a brass instrument usually ends in one of two ways: angry neighbors banging on the ceiling, or a rolled-up gym sock tragically stuffed into your bell. Fortunately, the era of desperate DIY sound proofing is finally over. Thanks to a new wave of innovative gear taking over the internet, you can now practice silently without ruining your technique. For years, urban musicians have struggled to balance their practice schedules with their lease agreements. But cramming a t-shirt or a towel into your horn isn't just a bad aesthetic choice—it’s actually terrible for your playing.