timbreja
Timbreja is a term used in music to describe the quality of a musical note, sound, or tone that distinguishes different types of sound production, such as voices and musical instruments. It is often referred to as "tone color" or "sound quality." Timbre is determined by several factors, including the harmonic content of a sound (the mix of overtones), the attack and decay of the sound, and the vibrato of the sound.
Unlike pitch (how high or low a sound is) or loudness (how loud or soft a sound
Similarly, human voices have distinct timbres based on the vocal cords, resonance, and articulation of the speaker