Tone quality refers to the character or color of a sound produced by a musical instrument or voice. It is influenced by factors such as the instrument's material, shape, and how it is played. For example, a violin produces a different tone quality than a trumpet, even when playing the same note. In music, tone quality is often described using terms like bright, dark, warm, or harsh. These descriptors help convey the emotional and aesthetic qualities of the sound. Musicians and composers consider tone quality when selecting instruments and crafting their pieces to achieve the desired effect.