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The Electrum temperaments are a group of rank-2 temperaments proposed by Iwuqety, inspired by the idea of using the acoustic phi (golden ratio <math>\varphi</math>) and acoustic silver ratio <math>δs</math> as generators, respectively replacing the 3/2 perfect fifth and the 2/1 octave used in common practice music. Electrum refers to naturally-occurring alloy which is mainly made up of gold and silver.
Untempered version (arranged in quasi-Pythagorean fashion)
| Intervals with hyper-generator <math>\varphi </math> | Intervals with hypo-generator <math>\varphi-1</math> | ||||
|---|---|---|---|---|---|
| In terms of
metallic ratios |
In surd form | Absolute cents | In terms of metallic ratios | In surd form | Absolute cents |
| 1 | 0 | <math>δs</math> | <math>δs</math> | 1525.854 | |