Key Video Lesson Take Away: This little trick with symmetrical scales, especially the diminished scale lets you create these really cool opposite motion chord runs where the outside lines come together and then depart each other. Unlike non-symmetrical scales, the diminished scale works out perfectly for this, making it super useful for those tense musical moments. And when you actually write it out instead of just playing into your DAW, you can stack voices gradually to create an awesome buildup that sounds incredible even with minimal tweaking!