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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]φ[/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)
| 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]\frac {1 + \sqrt{2}}{2}[/math] | 1525.854 | |