Music has been an important part of human culture throughout history and plays a vital role in people's lives. The elements that make up music include melody, tempo, dynamics, harmony, form, timbre, and rhythm. Melody refers to the tune, tempo is the speed, and dynamics concern volume. Harmony involves two or more notes played together, form is the structure of the music, and timbre is the sound quality of instruments. Rhythm encompasses the length and pattern of notes and rests.