Silicone, Purified water, Freezer, Record player
A record made of ice, by freezing water in a silicon mold. The ice record melts and the music evaporates as time goes by.
As the ice starts to melt, the music becomes a refrain. The sound dies away when the grooves completely melt down. The moment at which the recorded sound becomes a memory, phrases get burnt into your brain, echoing like auditory hallucinations. It is impossible for ice to retain its form at room temperature. Similarly, a memory is always opaque.