just today someone told me that Vocaloid was also AI music, they are either too dumb to make some basic fact-checking or true believers trying to hype up AI by any means necessary

My simple rule is that if it uses a neural network model of some kind, then it can be accurately called AI.

To be fair, back before ML natural language programming, non-tech folks often assumed coding was just telling the computer what you want in plain English. Today that's what vibecoders do