I learned alot about the history of micrphones and the specifcations of different microphones, like a flat response microphone is a good choice for vocals,acoustic instruments, and strings because it doesn't color or alter the natural sound of a vocal or instrument. I like see learned cardioid microphones are best for close micing vocals an instruments because of it's heart-shape pick up pattern, it is more sensitive in the front than the back providing great rear side noise rejection.