only BotBrs who login may tag

80s movie OST alt-tuning ambient dungeon dungeon synth Euler-Fokker microtonal

  8^th/_{34   Σ}28.273   Jul 31st 2025 9:39am

This composition is using the Euler-Fokker genus 45 musical scale, named after Leonhard Euler and Adriaan Fokker. It is a scale in just intonation which ratios are:

9/8


5/4


45/32


3/2


15/8


2/1

It was discovered with https://sevish.com/scaleworkshop (it's one of the sample configuration).

There are only 6 notes, and it variates from equal temperament this way:

C4  = D#3 - 12 cents


C#4 = E3  + 10 cents


D4  = G#3 - 16 cents


D#4 = A3  + 0 cents


E4  = B3  + 10 cents


F4  = C#4 - 12 cents


F#4 = D#4 - 12 cents


G4  = E4  + 10 cents


G#4 = G#  - 16 cents


A4  = A4  + 0 cents


A#4 = B4  + 10 cents


B4  = C#4 - 12 cents

If we translate it to a "normal" scale, I suppose it can be considered "G# phrygian" : G# A B C# D# E F# (without the F#)

ZynAddSubFX can load such scales and so I've composed and rendered the whole song using it. (I'm not very satisfied with some sounds, especially the percussive parts, but Zyn doesn't skip with many percussions)

This way my keyboard was re-tuned to the whole new scale, allowing to gain extra creativity, but in return the recorded notes are the one played on keyboard, not the one from the scale.

I was curious to play it with a normal, tempered tuning, so I've made a script to convert the midi file to the "real, closest notes":

https://gist.github.com/farvardin/1b60d1540a7b58466c75ea55e83b5c13#file-convert_euler_fokker_to_standard-sh

It sounds very close to the just intonation, but yet we can spot some differences.

104

11

4

5

29