Advanced Harmony Tutorial - Using Two Keys Together - Beyond Polytonality

One of my favourite systems for writing complex harmony. I first look at Stravinsky's famous Petrushka chord along with examples of Polytonality and use them to propose a two-key method that can afford the user a lot of harmonic variation. This does not necessarily only apply to modern classical music but also to general song writing. Although this is an advanced harmony lesson, I'm hoping non-musicians can enjoy the video too.

Видео Advanced Harmony Tutorial - Using Two Keys Together - Beyond Polytonality канала Tantacrul