I have been using SynthV for a long time now. It is a great tool for me (as a non-singer) to share my vocal melody ideas with clients and the vocalists.

Here is a demo I did of a LinkIn Park song where I created the music tracks and then, by using the piano roll editor in SynthesizerV, I created the vocal melody and added lyrics.

I could have tuned this even more but I think it is a good demo of the capability of AI.. One More Light SynthV Cover

For reference here is the original One More Light