Kind of a tautology.
It is like saying you cant have math(s) without arithmetic.
Speaking of which... When I was a grad student in math, preparing for exams, if I felt like listening to music, I could only get any kind of productive studying done while listening to classical or Rastafarian music. Anything else was too distracting. It was bizarre. I never listened to Rastafarian any other time. That stuff does something to your brain!