Mondo Knows Facts

The five line staff is a medieval invention

Guido d'Arezzo's teaching methods led to the notation still in use Earlier notation used fewer lines or letters above the text. Four lines served plainchant, and five became standard as ranges widened. Clefs fix which line carries which pitch. It sits in Mondo's music collection, one of 200 facts that each trace back to the reference below.

Where this comes from

Britannica

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Tags: notation, history, medieval

The five line staff is a medieval invention: the short answers

Where does this come from, and can I check it?
Guido d'Arezzo's teaching methods led to the notation still in use. The figure is taken from Britannica, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
Is this really a music fact?
Yes. It sits on the Music shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
What else can I read about it?
The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.