Ornamentation

Trill: A trill is a rapid alternation between two adjacent notes, adding a fluttering or trembling effect to the music.

Grace Note: A grace note is a quick, ornamental note played before or after a main note, adding subtle embellishment to the melody.

Appoggiatura: An appoggiatura is an expressive ornament where a non-chord tone is approached by a leap from one note to another, creating tension before resolving to a consonant note.