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A cool trick ti sound more polytonal and keep things under control.
- over Dmin7 use G Maj Triad -G, B, D- and F Maj Triad -F, A, C.
- play four eighth noted over each triad, switching back and forth:
G-D-B-G--F-C-A-F--D-B-G-D--C-A-F-C-- etc.
- make up other patterns, but stick to four notes over triad formula.
- now, here are the hip ones:
- over C7 use C Maj triad - C, E, G- and Bb Aug triad -Bb, D, F#- for a sound that is whole-toneish...
- over C7 use F# Maj triad -F#, Bb, C#- and E Aug triad -E, G#, C- for an altered/tritone sound.
- over C7, (normal dominant or altered), use Db- triad and D Aug triad
- over Dmin7b5 use Bb Maj triad and Ab Aug triad
- over CminMaj7 use F Maj triad and Eb Aug triad.

Here's one formula that can be used for some combinations:
- C Maj triad and Bb Aug triad --C E G - Bb D F-- over these chords:
***C7#11
***Emin7b5
***F# alt7
***GminMaj7