Notes whose lengths are equal to one-eighth the value of a whole note or half the value of a quarter note.
Sharps, flats and naturals that do not appear in a key signature.
Crescendo and Diminuendo
Indications instructing the player to play gradually louder (crescendo) or softer (diminuendo).
Crossing Over Thumb
The physical motion of crossing fingers 2, 3, 4, or 5 over the thumb; used when playing scalar passages or outside of five finger scales.