507/500

507/500, the windermere comma is a 13-limit small comma. It is the amount by which two 13/10s exceed a 5/3.

Interval information

Ratio	507/500
Factorization	2-2 × 3 × 5-3 × 132
Monzo	[-2 1 -3 0 0 2⟩
Size in cents	24.06918¢
Name	Windermere comma
Color name	3oog32, thothotrigu 2nd
FJS name	[math]\displaystyle{ \text{dd2}^{13,13}_{5,5,5} }[/math]
Special properties	reduced
Tenney norm (log2 nd)	17.9516
Weil norm (log2 max(n, d))	17.9717
Wilson norm (sopfr(nd))	48
Comma size	small
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Etymology

The comma is named after Windermere Jetty: Museum of Boats, Steam and Stories, a museum in the Cumbria, England. It used to be operated by UK Register of Charities, registered charity #500507: Windermere Nautical Trust Limited.