Also, btw, the elevator musak isn't an unused feature. It's added by SCP. I believe it was inherited from adaob, which intentionally added a blank file with the idea that other mods would replace it with music.
ADaOB added elevator music. SCP removed it, and replaced it with a blank wav that gives people the option to mod in elevator music if they want it.As for Muroj's version, if this was intended to sound like music played over a low-quality speaker, the high notes are far too clear. This sort of effect has to cut both the high and low end of the spectrum.