I wouldn't have predicted that this would work as well as it does:
Sinewave synthesis (Robert Remez et al. "Speech perception without traditional speech cues", Science 1981) pointed the way, but this is pretty far down the road. Now I want to hear the string orchestra and brass band versions.
Of course, the apparent intelligibility is mostly a function of knowing what was "said". But still.
[Hat tip: Aengus.]