Divide the length of notes freely and evenly, and the number is inconsistent with the basic division, which is called a special form of rhythm division, also known as Legato. A triplet, that is, three equal parts of 1 beat, 2-beat or 4-beat, each tone sings (plays) 1/3-beat, 2/3-beat or 4/3-beat.

There are many kinds of ligatures, which are called several ligatures according to numbers. For example, the top of the symbol is marked with 5 for "5 Legato", 6 for "6 Legato", 3 for "3 Legato" and so on.

This kind of Legato is in the position of notes with a certain sound value, which appears more times than the specified notes, but the duration has not changed. This growth has not doubled, resulting in Legato, such as a quarter note, which should have two octaves. If you squeeze five sixteenth notes into the space of this quarter note, there will be five heritages. If three octaves occupy the space of a quarter note, it is formed. "

Generally, the method of marking numbers with continuous notes is to write numbers only at the end of symbols, and write several continuous notes. If there is a rest, draw lines on both sides of the number to show the relationship between the rest and the notes, but draw them together.