An arpeggio is a musical technique where the notes of a chord are played in sequence, rather than simultaneously. For example, in a C major chord, the notes C, E, and G can be played one after the other, creating a flowing sound. Arpeggios are commonly used in various music genres, including classical, jazz, and pop. Musicians often practice arpeggios to improve their finger dexterity and understanding of harmony. They can be played on different instruments, such as the piano, guitar, or violin. Arpeggios add texture and movement to music, making compositions more interesting and dynamic.