Singing has to do a lot with physics, and since I am watching t.v it has total relevance. The way that the sound of a singers voice gets from that person to the singer is involved with physics such as mechanical waves. These waves are also involved with the way someone can sing as in the pitch, which would be frequency of some sort. Someone yelling at the grammies compared to someone quietly singing will have a much lower frequency and without all the auto-tune the frequency of most of these artist seem to be much higher. The art of singing has a lot more to do than just frequency and mechanical waves, it also has to do with the abiltity to control an individuals voice and things like why you can hear someone singing when they are not just in front of you. All together proving physics in singing.