- I do not use graph paper.
- I write my 12-tone row across the top of a blank piece of paper.
- I use only flats so I do not confuse enharmonic equivalents.
- I write the left-most inversion down the left side.
- I quarter my matrix with a horizontal and a vertical line to see hexachords. I quarter the quarters for easier reading and to better see trichords.
- I do one interval at a time of the original row all the way down, i.e. I finish one inversion at a time.
- I frequently check completed rows against a chromatic scale. (Is there a C? Is there a D flat? etc.)
- When finished, I check the diagonal from upper left to lower right.
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