I find that the accompaniment iii-IV of many rap songs, constantly repeated, has a mysterious charm.

I find that the accompaniment iii-IV of many rap songs, constantly repeated, has a mysterious charm.
Some modern pasts can feel a bit cliché if they use too many chords.
I watched a lot of modern rap songs on youtube, mostly using iii-VI
Sometimes v-VI is also used in minor keys, it's the same thing.
It's like iii-IV in C major is Em-F
v-VI in A minor is also Em-F

https://www.youtube.com/watch?v=LDZX4ooRsWs


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