What aspect does musical timbre focus on?

Musical timbre is primarily concerned with sound quality, which describes the color or texture of a sound that distinguishes different instruments or voices, even when they are playing the same pitch at the same loudness. For example, a piano and a violin playing the same note will be perceived as different because of their unique timbres. This characteristic is not related to rhythm, melody, or dynamics, which focus on the timing of music, the sequence of pitches, and the volume of sound, respectively. Understanding timbre allows listeners to appreciate the richness and diversity of sound produced in music, making it essential for recognizing the identities and qualities of different musical sources.