Today I thought I might give a brief argument as to why perfect rhyming is essential in lyrics. Let’s think about musical dissonance for a moment; modern music is fully aware of dissonance, but is also smart enough to use it sparingly. The fully atonal composers saw dissonance as a style, rather than what it actually is: an effect. And any musical effect must be used intelligently and therefore intermittently if it is to maintain its efficacy over time. Thus, dissonance must be saved until the moment at which it will be most effective. At that point, it may be used with abandon.