The duration of the whole note is a complete musical beat, the duration of the quarter note is half of the whole note, and so on. For example, a whole note equals two and a half notes, a half note equals two quarter notes, a quarter note equals two eighth notes, and so on. In addition, there is the concept of adding points to increase the duration of notes. For example, the duration of a dotted binary note is a binary note plus a quarter note of equal length. The duration of notes refers to the duration of notes in the score. Different notes represent different durations and are relatively fixed. At the same tempo, the duration of different notes can be calculated. It should be noted that the speed of different music (beats per minute) will affect the actual playing time of notes, so the duration of notes is defined by a certain beat speed.