A great tool for making microtonal music that uses even divisions of the octave (EDO) is the STS mictrotonal quantizer by @stschoen, which can divide the octave into up to 40 steps and cleverly provides a note mask for each note.
https://discourse.audulus.com/t/microtonal-quantizer/436/
By the request of @biminiroad I have made a 31-EDO adaptation of the quantizer that emulates the scale used by the Fokker Organ.
Microtonal Quantizer V2.0 31 EDO.audulus (536.3 KB)
fokker demo.audulus (717.0 KB)
