Definitions for "Ledger lines"
Short lines that extend the staff, connected to the pitches that require it.
Lines written above or below the staff to help indicate the correct pitches for notes written outside of it.
short lines used to extend the range of a staff beyond its normal five lines. Ledger lines are added according to the same spacing that the staff used. Several may be added according to the needs of the music, but if more than 3 ledger lines are consistantly used, a change of clef is generally employed.
The designated location on an FEC or state report where a transaction is assigned.