Drumlines can also have cymbals, who hold two identical crafted metal solid cymbals in both hands in front of their bodies, and slam them together to get a sustained crash sound. Many modern drum corps have opted to eliminate cymbals from their drumlines, as they can be expensive to maintain. Cymbal lines need at least one additional staff member to teach, as they are very different from the other drums. In addition, a corps may have limited members, and deem that a musician is more valuable in the front ensemble, where they can play other instruments simultaneously.