A musical embellishment is a decorative addition to a piece of music that adds to its overall sound. ROULADE, which is seven letters long, is a rapid succession of notes sung or played in a single breath or bow stroke. TRILL, which is five letters long, is a rapid alternation between two notes, usually a half step or whole step apart. GRACE, which is also five letters long, is a short musical phrase that is usually played or sung before or after the main melody. Finally, a Gracenote, which is nine letters long, is a short musical phrase that is used to decorate a melody.