Does anyone here know about this AI software called Sonantic?
It is text to speech and very realistic at the moment:
www.sonantic.io
There's a pitch parameter also - so maybe there's a chance it could also sing - in a future update? I doubt that it's software you can have on your own computer, but you'll have to input text and get a wave file. But it's pretty impressive.
It is text to speech and very realistic at the moment:

Spotify to Acquire Sonantic, an AI Voice Platform — Spotify
As a leader in all things audio, Spotify is always searching for new ways to create unique experiences that our users will love. So today we’re excited to share our intention to acquire Sonantic, a dynamic AI voice platform that creates compelling, nuanced, and stunningly realistic voices from...

There's a pitch parameter also - so maybe there's a chance it could also sing - in a future update? I doubt that it's software you can have on your own computer, but you'll have to input text and get a wave file. But it's pretty impressive.