Vocal Technique is the practice of using the voice in a particular way when singing or speaking. Vocal Technique is a rehearse way of adjusting the voice both musically and non-musically; to create different sounds or voice qualities. The techniques required to control the voice are physical, and can concern a person's posture whilst singing or speaking; or the way in which they actually produce the sound. This article is primarily concerned with singing in which vocal technique is vastly more complex, although the same principles of technique can also be applied to the spoken word.