Here's the inversions, see how they repeat the three inversion structures through each vertical sweep.
C maj arps or chords
|------------------12--------------8------------8------------3------------0-|
|---------------13---------------8------------5------------5------------1---|
|------------12----------------9------------5------------5------------0-----|
|---------10----------------10------------5------------5------------2-------|
|------10----------------10-------------7------------3------------3---------|
|---12-----------------8--------------8------------3------------3-----------|
hmm, I missed one
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