Did you know that there's a parallel universe to the Church Modes? I know this sounds a bit fancy, but it's true, and at the Academy, we call those the "OTS Modes" - OTS standing for "Overtone Series".
These scales connect directly to the harmonic series and provide some fantastic sounds for composition. Inside the Academy, we go into many applications of the OTS Modes, their connection to Polytonality, or even the most practical scale reflections.
This topic also connects to Jazz theory (you might be familiar with that) but explains everything simpler because we stick to the intervals as our base of thinking.
Author: Frank Herrlinger