A Voice Apart

What we mean by this is that the human voice possesses a ‘rainbow of colours’, so to speak. It also possesses different varieties of voice performance .  Singers always say that sometimes they really have ‘good days’ with their voice, i.e., their voice obeying their commands and give them the right tonality, bright tone and perfect pitch; whereas some other times, they refer to the ‘bad days’, i.e., when the voice sounds dark in tone and the pitch and projection also suffer. Objectively, the latter, in this case, depends on the mood of a singer, the weather and, perhaps, the personal circumstances prevailing the performance.  All of the above is somewhat good, but wouldn’t it be even better if the singer did not depend on the outer factors; but would mostly depend on the professional training and proper vocal technique, pertaining to the vocal performances and studio recordings.  After all, we are talking about the human being and the human voice he/she possesse