Right guys, I need your help! I need to write a 5000 word essay on 20th century music as part of my degree, and from a list of essay titles I have chosen this one: "Take any musical instrument and show how the 20th century extended its range. Refer to actual playing technique, the way it has been composed for, and its interation with technology (eg. electricity and amplification; the voice and the microphone etc.)" Obviously my chosen instrument would be the cornet , and probably brass instruments in general. I’m not really sure where to start, so any help – books, websites, your own cleverness would be much appreciated! Thanks in advance!