concrete filter

oh i love the dungeon! today there's someone singing next door, adding some vocal texture to my usual playlist of instrumental electronica. but, if i can hear him, i presume that he can hear me! but his nice voice, although filtered through a concrete wall, would sound so much better than my incessant tappings on the keyboard, interspersed with bursts of frustrated swearing at my petulant code. just as well i've taken my violin home, otherwise the sounds of a dying cat would surely throw this eclectic aural mix.