What the landlord said is music notation. Let me explain them one by one. First of all, the arc represents these two sounds. If it's the same, then sing the front first, then sing the back. If they are different, then both need to be sung, and most of them correspond to 1 Chinese lyrics, which means that the word has transliteration.

Both single dash and double dash are rhythms, and when there is no dash, it is the normal beat speed of 1, depending on whether the rhythm at the beginning of the score is 2/4 or 6/8.

A dash-dot line indicates that the speed of sound here is half of the original 1 beat.

That is 1/2.

. The double dotted line is 1/4.

Mathematics can be calculated, right Without these rhythms, imagine that all songs are at the same speed. Even after reading it, why do singers pause when singing? It depends on the rhythm. Sometimes it is 1 beat, sometimes it is half beat, and some notes need to be sung 1 beat.

Half-beat?

As for the last, it should be the cross section. In general, the 1 part is 2.

Flap/flap

three

Flap/flap

four

Shoot like this, or look at the rhythm traces before. 4 beats is 1, so 4 beats is 1 bar. Look at these for a long time. Simple symbols are nothing, simple symbols.

Ha ha laugh

This is understanding.