Piano music is usually written using something called The Grand Staff…

The Grand Staff is a set of concise and elegant symbols, a unique symbolic language, that communicates an incredible amount of information in a very economical way.

Such information may include any or all of the following…

• The key center and tonality (key signature).
• Any changes of key or tonality.
• The meter. (time signature)
• Which notes to play, when to play them, how long to play them, and in what manner to play them.
• When not to play (rests).
• Phrasing
• Repeats
• Pauses
• Tempo (how many beats per minutes)
• Acceleration or Deceleration of Tempo
• Dynamics (loud, soft, changes in loudness)
• Fingering
• Can you think of some others?

learn more… Music Notation: G-clef & F-clef