The purpose of being a rapper is to be the best LYRICIST. It is not necessary to make your own backing tracks...that is a different discipline, and as someone who studies rap for real, and is actually a fan of the music (as well as classical music, metal, dubstep, etc.) people should know the culture before stating what is mainstream and what is not.
One of the main purposes in rap is the remix - taking someone else's backing track and flipping it a totally new lyrical way. If the kid asks for beats, just give the kid beats, not a speech.
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