Using triad pairs is a great way to contrast the common scale-based lines used over a minor tune So What. The “A” Section—16 bars— contains a D Dorian scale, though most commonly the chart is written as “D Min 7”. A i and ii triad pair—in this case D Minor and E Minor—outlines the dorian sound, but using intervals and not the scale in a linear sense. You can also use D Minor and C Major.
The cross rhythm will also be present in the line, and it will resolve metrically (on beat one) every three bars.