Ragisma

In music and tuning, the ragisma is an interval with the ratio of 4375:4374,[1] ≈0.396 cents (a superparticular ratio). It is usually defined as the difference between the septimal minor third (7:6) and two Bohlen–Pierce small semitones (27:25 Play one ). It is also the difference between minor Bohlen–Pierce diesis (245:243) and septimal semicomma (126:125), as well as the difference between the septimal third tone (28:27) and the greater diesis (648:625). (Play )

Septimal minor third on C Play .

Sources
  1. Haluska, Jan (2003). The Mathematical Theory of Tone Systems, p.xxviii. ISBN 80-88683-28-9.
gollark: No, not what I mean.
gollark: If you want your app to wake up when it receives a notification from the network, Google requires you to use Google.
gollark: "Background notification" = notification done when the app's not running. Although strictly I'm being inaccurate.
gollark: Or, well, your app can only be woken up by notifications from them, it can fetch data separately I guess.
gollark: *All background networked push notifications* on Android are *required* to run through Google.
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