What does the term 'Acciaccatura' refer to in music?

The term 'Acciaccatura' refers specifically to a grace note that is played very quickly before a longer note. In musical notation, it is typically indicated with a small note that is connected to a larger note by a slur, showing that it is to be played swiftly and lightly. The acciaccatura adds embellishment to the principal note that follows, creating a momentary dissonance that resolves nicely into the main melody.

This technique is often used to enhance expression and add flair to a piece, highlighting the skill of the performer in executing the rapid transition from the grace note to the sustained note. Understanding the function of an acciaccatura is crucial for interpreting certain styles of classical music where ornamentation plays a vital role in the overall aesthetic.