DESCRIPTION:
The logarithmic frequency spectrum of the audio has been inverted. Every half-step out from the reference note (C6) becomes a half-step in the opposite direction. Where the song would rise in tone will now decrease in tone, where a chord was major will now be minor, and vice versa. Generated using ARSS for analysis/resynthesis, and a low-pass filter to reduce unpleasant ringing artefacts.