In a world where passive listening prevails, music serves not only as a pacing device but also as a shield against environmental noise. Yet, the success of music intentionally created for active listening is threatened. As the group initially tunes in together, individualised sound bubbles emerge, forming auditory microspheres that offer relative freedom of hearing. This trend is furthered by the use of headphones, akin to introducing acoustic micro-apartments into public space—an insulation technique reminiscent of wearing an acoustic diving suit.