I find we chat a lot about the technical aspect of SE on PSW but we don't really focus on the phonetic aspect of SE.
As sound engineers we have the ability to make or break a band/speaker, in truth the person on stage is putting there entire career in our hands for a period of time(ok maybe that is a bit of hyperbole) but honestly, not all of us know what is pounding into our eardrums and why we have a headache simply from that loud music the night before.
I would like to discuss the frequency range of some of the most common instrument here a little. This is more a general thing where we mass our collective knowledge together for refferrance purpose.
I honestly do not want to cover the human voice again because it is taught comprehensively in many places but rather learn some things we didn't know or maybe knew but never actually thought about.