There are many instruments that have music written only in the Bass Clef, so it is important to learn to correctly read the notes in the Bass Clef including its common ledger line notes. This set of cards is designed for them. The note range is from the E (Grandpa Elephant) below the Base Clef to the G(Mama Giraffe) on the third ledger line above the Base Clef. Card size is 8 ½ by 11 inches.