We wanted to commend this YouTube channel to you, if you are interested in music: https://www.youtube.com/@wingsofpegasus
Fil is a musician and a music teacher.
In the past he has looked at music and singers especially, analysed their styles and voices and tried to say what makes them special.
More recently, he has been looking at examples where technology is being used to ‘pitch correct’ singing, even at live events, and other techniques that you might reckon were cheating (eg miming).
The videos all follow a similar style. It’s not surprising that performers are using technology to make them sound ‘better’ singers. What is surprising is the actual scale of it (and Fil must surely only be coving a tiny percentage) and some of the big and famous names. And some performances have been ‘fixed’ even though the singers are long gone.