These five lines are called the staff or the stave.
This symbol is called a treble clef. There is a treble clef at the beginning of every line of guitar music.
A staff with a treble clef written on it is called a treble staff.
There are only seven letters used for notes in music. They are:
These notes are known as the musical alphabet.
Guitar music notes are written in the spaces and on the lines of the treble staff.
This music note is called a quarter note. A quarter note lasts for one beat.
Bar Lines are drawn across the staff, which divides the music into sections called Bars or Measures. A double bar line signifies the end of an important section of music, while a final bar line is written at the end of a piece.