Conducting
In the 17th century, orchestras were usually small enough that they did not need a conductor. Often they were directed by the keyboard player or lead violinist. But as orchestras grew in size and began using a wider variety of instruments, it became a convention of having someone who was not playing any instrument to stand, facing the orchestra, as the director or conductor. One early conductor was the French composer Jean-Baptiste Lully (1632-1687), who beat time by banging a big stick (like a walking stick) on the floor to the time of the music. One day he banged his stick so hard, it went through his foot, and he died of gangrene.