Music professor: Because rap musicians can work alone in a recording studio, they need not accommodate supporting musicians' wishes. Further, learning to rap is not as formal a process as learning an instrument. Thus, rap is an extremely individualistic and nontraditional musical form. Music critic: But rap appeals to tradition by using bits of older songs. Besides, the themes and styles of rap have developed into a tradition. And successful rap musicians do not perform purely idiosyncratically but conform their work to the preferences of the public.
The music critic's response to the music professor's argument challenges it by offering evidence against one of the stated premises on which its conclusion concerning rap music is based.