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Once you've got a good grasp on your material, it's really useful to spend a bit of time thinking about the most efficient ways you could organise it. For example, if you are asked 'how is this piece a ty...

A lot of the time when we hear a chord, we expect it will be organised with the root note at the bottom - that the order of scale-degree notes, ascending, will be tonic-mediant-dominant (root-third-fifth)...

56 = 2 x 2 x 2 x 7.Prime numbers are the basic building blocks of all numbers. They can't be divided by any number apart from 1, or themseslves.

d(x²+2x-1)/dx = 2x+2when dy/dx = 0, x = -1when x = -1, y = -2
therefore the turning point is (-1,-2)

Events must be random and independent of each other. There must be a uniform rate of occurance.