Beatmakers, literally rhythm makers, use their creativity to compose the instrumental part of rap songs, called "prod" or "instru" Only a few rappers compose their own instruments, like Jul or Niro. Some make their prods alone and then send them to the rappers they want to work with.
Others collaborate directly with them, in the studio, such as Benjay, beatmaker who mainly produced for Damso, but also PLK or Rim'K. Interest in beatmaking has grown greatly in recent years, a direct result of rap's growing popularity.