I see the same old shit, I see in the streets
I know you think I'm sellin keys but I only sell beats
Dopefiend music, it's drug related
You can buy it on the corner get a radio and play it

from Jay Z (Ft. Too Short) – Real Niggaz Lyrics on Rap Genius

Meaning

The music is so deep and puts you in a trance like a drug but it isn’t really a drug. Its something that sounds good in your ears and you can either get the music off the streets or hear it on the radio.

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