An acciaccatura is a musical ornamentation technique that involves quickly striking a note that is followed by a longer note. This technique can be found in many different genres of music, including classical, jazz, and blues. Although the term acciaccatura is specific to music, there are several synonyms that can be used to describe a similar effect, such as a grace note, appoggiatura, and crushed note. Each of these terms refers to a short, decorative note that is played quickly before a longer note. Acciaccatura is often used in conjunction with these other techniques to add a sense of elegance and flair to a musical piece.