Gospel and hip-hop.
A lot of modern rap has a strong gospel influence. Hip hop is an incredibly diverse genre. and DJs and producers borrow from all different kinds of music.
Humorist Dave Barry's description of rap: "A bunch of angry men shouting, possibly because the person who was supposed to provide them with a melody never showed up."
Rock & roll uses real instruments (guitars, drums, pianos, horns, etc.), and Top-40 uses a bunch of fake sounds coming from a keyboard synthesizer.
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What in the fuck is that supposed to mean? There's no such thing as a "fake" or "real" sound. I don't know if you're attempting to distinguish between analog sounds and digital sounds, but a lot of early keyboards like the Moog synthesizers were analog. A guitar chord is no more valid than a beep you created in Audacity and modified and used in a song.
Your head is about to explode, but there are guitar synths. Judas Priest infamously used guitar synths on the
Turbo album. I played one about 30 years ago, and it was pretty cool. One of the presets was a drumkit, and each string was a different drum. It would have taken a lot of energy into playing a beat with a guitar, but it could be done.