It sounds great, I kinda used a similar approach. An incredibly useful plugin for this is Waves Vocal Bender, it can slightly alter the pitch, but the real game changer is the formant shifter included in it, which basically modifies your timbre to a completely different one
I'll have to check it out! I've messed around with some formant shifters before, and they can definitely add a whole new depth to the choir! I've also tried out some AI voice changers, but I actually found them to not work that well mixed with my original voice!
How did you record the tenors, altos, etc?, did you just follow the individual notes in each of the chords in the progression? Otherwise, is there a technique to sing the different parts of any song?
