Music Technology A2 exam: the essay question

Often when preparing for exams, you find that a disproportionate amount of time is spent on certain parts of the content. So it is with question 4 of the Music Technology A2 exam: 16 marks that you will spend a significant amount of time chasing. This is due, in part, to the rather vague language of the specification, and the vastness of Area of Study 3 (the development of technology-based music).