ledger line
leger line

Notes more than three or four ledger lines above or below the staff are usually considered hard to read.

Players of certain instruments prefer ledger lines to clef changes or 8va notation.

The note will lie on a ledger line.

And just a few ledger lines above.

Sometimes of course you'll, they'll still need ledger line notes up there.

A ledger line is a short line used to write notes which would otherwise be too high or too low for the staff.

Notes which are very high or low can be put on extra lines called ledger lines above or below the stave.

Clefs were generally chosen to match the vocal range of a given voice, so as to avoid the need of ledger lines.

The bottom ledger line: Liang had retained complete power for another two years at least.

The Middle C sits on a ledger line (an extension of the stave written just for one note).