The key is to link up a singer’s already incredible ear with what they see on the page — and, use a more robust knowledge of harmony to anticipate what comes next. Learning key signatures, intervals, scales, chord progressions, and function help singers be one step ahead. And, become the kind of colleagues that get hired back again and again.
We better go back to the source of the loop for some context — Lauren Hill’s “Ex-Factor” — and holy rabbit holes, did they make it their own! First, they took the sample and pitch-shifted it up a whole step from G♭ to A♭ (thought it sounded kind of chipmunk-esque), then they chopped it up and taped it back together out of order. But what really transforms the music of it is what they didn’t take. So we were right that the singers are singing in A♭ major note logic, but they didn’t sample any A♭ major chords — and how can you have a song in A♭ that doesn’t have any A♭ chords? Also, they didn’t sample any of the bass notes that made some of the singer’s triads into different tetrads.