17edo expressionism | Microtonal harmonic progression
gamma_squared
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17edo expressionism | Microtonal harmonic progression
465 просмотров · 2 недели назад
gamma_squared
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465 просмотров · 2 недели назад
This is the first time I try to write a complete and closed harmony exercise in 17edo, and I'm quite happy with the result. :)
Some days ago I experimented a bit creating chords and structures like the stacked intervals in measure 3. I always found this microtonal tuning very appealing and I needed to start composing something in it! Although performing this short piece could prove to be quite difficult for a non-specialized string orchestra, so this is mostly experimental and theoretical territory. Also, in my opinion this miniature sounds like a blend of impressionism and expressionism.
Either way, in my opinion this tuning can get really nice harmonies. For those who don't know, in standard piano music the octave is divided in 12 equally spaced intervals, the semitone. 17edo is the same but instead you divide the octave into 17 equal steps that are around 70 cents in size. This smaller size is really good for voice leading while still sounding similar to a normal semitone.
Furthermore, 17edo has a really mathematically close neutral 3rd that can offer really liminal/dreamy soundscapes (a neutral 3rd is the square root of 3/2). It also approximates harmonics 3, 7, 11 and 13 decently and the huge error in the 5th partial can become an advantage because it exaggerates the difference there is between minor and major chords, and it can also give us some desired acoustic effects.
Fun fact, at the end of measure 6 I use Scriabin's Mystic chord but slightly rearanged and using the odd harmonics.
I hope you enjoy it! If you find this cool please share it with more people and help me get some visibility, thanks. ^^