Using double or triple sharps or flats may seem to be making things more difficult than they need to be. sharps and flats are rare, but follow the same pattern: every sharp or flat raises or lowers the pitch one more half step. A double sharp is two half steps (one whole step) higher than the natural note a double flat is two half steps (a whole step) lower.
When a sharp sign appears in the C space in the key signature, all C's are sharp unless marked as accidentals.Ī note can also be double sharp or double flat.