Use formant instead of pitch. This gives you waaaay more freedom. Increasing the pitch will change the notes of the track and put it into a different key which makes things complicated. Increasing the formant will make it sound like it was pitched up, but keep the note intact and keep it in the same key as it was before. You can make a C sound like it was pitched up to an F, but it'll still *be* a C note. So you can pitch the vocals up to whatever pitch sounds best, but not have to worry about it being out of key, and you won't be restricted to pitching it up by a whole octave. This is how 100 gecs is able to use a bunch of different keys in their songs but the 'pitch' of the vocals stays the same. It's just an effect that sounds like pitch-shifting but doesn't actually change the pitch, so you have more control over how high or low you want something to sound, and you have more control over what key it's in.
this is very true and useful but im pretty sure gecs don't formant shift, i think they just pitch down the instrumental a couple semitones when they record vocals
