…would be the deRapper, which automatically identifies and deletes gratuitous rap sequences inserted into otherwise pleasant songs. You’d probably have to upgrade to deRapper Pro to add the ability to filter out rap background “vocals” that intrude on the actual song.

[this post brought to you by Melon Kinenbi’s Akuma de Fake, Onegai Miwaku no Target (Melon Pudding Mix), and Kousui (Hard Flavor Mix), the latest such vandalisms to pass my ears]