When did the bar line on the staff appear?

The origin of bar lines comes from Hebrew poetry. In ad

four

five

In the19th century, there was an Italian shepherd.

teacher

Ambrosius

In Hebrew poetry (music)

Sound of the same length is not of the same intensity.

the same

Sound of the same length should be equally strong,

You are a beat and I am a beat, so it should be equally strong.

) But why?

Strong and weak?

Ambrosius

The priest's discovery evolved into today's bar line. Although you are a beat, I also

It's all a beat, but because of the different positions, the intensity is different.