The treble clef (the large fancy symbol to the far left) shows the musician that the staff is treble. A simple, unadorned staff is shown below. It consists of 5 lines with four spaces between them. Here is a list of topics discussed on this page:
To do this, a system of notation was developed that gives musicians the information they need to play music as the composer intended it. Especially in the days before audio recording and playback, music was often written out as a means of preserving and communicating it.