You forgot Man vs. Civil War Era Cyborgs

From a 1959 article describing "How no-talent singers get 'talent'":

"Recording techniques have become so ingenious that almost anyone can seem to be a singer. A small, flat voice can be souped up by emphasizing the low frequencies and piping the result through an echo chamber. A slight speeding up a the recording tape can bring a brighter, happier sound to a naturally drab singer or clean the weariness out of a tired voice. Wrong notes can be snipped out of the tape and replaced by notes taken from other parts of the tape. Almost every pop recording made today , even by well established talents, carries some evidence of he use of echo chambers, tape reverberation, over-dubbing, or splicing"

Same old, same old...