The middle note between the treble staff and the bass staff is called “Middle C”. It engulfs the ledger line. It’s one ledger line below the treble staff and one above the bass staff. I suspect that’s why it was named “middle C”.
The middle note between the treble staff and the bass staff is called “Middle C”. It engulfs the ledger line. It’s one ledger line below the treble staff and one above the bass staff. I suspect that’s why it was named “middle C”.