High-low (intonation) voice is an important part of one's expression of positive feelings. How does one use intonation reflects the quality of people concerned. In fact, melodious voice can be hurt even if it is not properly articulated. God's servants advised him through the speech Luqman,
"... Low voice. Indeed, the worst sound is a donkey." (Luqman [31]: 19)
Someone who spoke in a loud voice or scold other people will not give good impression on the other side. In addition, in most cases, something like this was unbearable, like listening to the roar of a donkey.
In other words, the way people talk is important. The voice of people who are afflicted irate may sound uncomfortable, although the voice was male or female, in a normal atmosphere, perhaps ditelinga sweet. On the other hand, too, someone with no pleasant voice chanting could be heard more tuneful if followed commendable values of Al-Qur `an. Melodious voice, on the other hand, may seem overwhelming attack and, if that person is arrogant and painful impression. Because the sound person, which is a reflection of the negative nature of self, whether male or female, tend to complain and inciting.
Like the sound, they always have berakhlaq noble modest nature, polite, humble, peaceful, and constructive. With a positive perspective in life, they are always cheerful, enthusiastic, bright, and cheerful. This perfect nature, which arise from the morality of life behavior as described in Al-Qur `an, manifested in a person's voice sang.