Voice is an instrument , an integral part of the body, which can also be trained and tuned. It is probably one of the most beautiful and versatile god given instruments. The most important aspect of a good voice production is the ability to bring out the purity and richness of sound. I would say that a single sustained note given with utmost purity and fullness , filled with ‘nadham’ can produce an effect not even equal to a complex bhriga laden phrase.