A lot of mostly 5-limit and 7-limit near-just harmony revolving around the note C. A nice amount of comma movements, and indeed in 53-equal that single step comma is very versatile, acting as 80:81, 63:64, as well as 2025:2048, 524288:531441, and a rather wide kind of chorus, as demonstrated by the late George Secor on his Scalatron back in the day.
Improvised fairly freely on the Lumatone using the MKI preset in Pianoteq tuned to 53-equal. Some little stutters when for some reason the Lumatone thinks I'm playing at max velocity during a held chord.
My book "Microtonality in 55 keys", a guide to intervals, scales, chords on generalised keyboards and how to use them in a wide range of microtonal tunings, is available on my website here (follow the PayPal link)
https://cametaylor.wixsite.com/home/post/microtonality-in-55-keys-the-first-book
Get in touch if you want to organise lessons on keyboards, audiation, microtonality, or just want to learn more about music in general:
Here on YouTube @camtaylormusic
via email at camtaylorpianolessons@gmail.com
my website https://cametaylor.wixsite.com/home
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More to come soon.