Hi Tom, I'm glad you decidaded to sing it your self! Those AI vocals miss the interpretation or rendition, even tho they may be perfect acording to melody. That's why they're not human and miss the emotional part of the vocals. I decided not to comment those posts with AI made vocals, because I would be repeating my issue against AI vocals.
Your song also have a good groove and exceptional sax parts. I have to use BB RealTrack solos and because they're made according to chord changes, they miss also the interpretation of the melody or story told. So I try to play the solos myself with the instruments I can play (mandolins, banjos, guitars) or with virtual instruments (like Uillean pipes or cathedral organs lately) with a keyboard, even tho I'm not a piano player.
Thanks for sharing this enjoyable jazzy song.