Deeptone: Difference between revisions
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{{Infobox regtemp | |||
| Title = Deeptone | |||
| Subgroups = 2.3.5, 2.3.5.13 | |||
| Comma basis = [[177147/163840]] (5-limit);<br>[[1053/1024]], [[2187/2080]] (2.3.5.13) | |||
| Edo join 1 = 7 | Edo join 2 = 33 | |||
| Mapping = 1; 1 11 -4 | |||
| Generator = 3/2 | |||
| Generator tuning = 689.6 | |||
| Optimization method = CWE | |||
| MOS scales = [[5L 2s]], [[7L 5s]], [[7L 12s]] | |||
| Pergen = (P8, P5) | |||
| Odd limit 1 = 5 | |||
| Mistuning 1 = 12.3 | |||
| Complexity 1 = 12 | |||
}} | |||
'''Deeptone''' or '''tragicomical''' is a [[5-limit]] [[regular temperament|temperament]] that [[tempering out|tempers out]] the [[comma]] [[177147/163840]]. It is generated by a fifth (~[[3/2]]), which is typically sharper than in [[7edo]] but flatter than in [[flattone]] or [[flattertone]] (approximately 686-691{{cent}}). The ~[[5/4]] is reached by eleven fifths octave-reduced, which is an augmented third (C–E♯). A characteristic feature of deeptone is that the [[81/80|syntonic comma]] is tuned negative, represented by a diminished unison (C–C♭). This means that ~[[81/64]] is a ''submajor third'', tuned flatter than ~[[5/4]], and ~[[32/27]] is a ''supraminor third'', tuned sharper than ~[[6/5]]. It has high [[error]] because of its flat tuning of 3/2, although the well-known [[mavila]] temperament has a 3/2 that is much flatter still. It is rated as high-[[badness]] by most badness metrics due to the combination of high [[error]] and high [[complexity]], but it is still of a low enough badness to be usable. Four edos support deeptone in their [[patent val]] ([[7edo]], [[33edo]], [[40edo]], and [[47edo]]), and additionally there is the near-patent val [[54edo|54b-edo]]. | '''Deeptone''' or '''tragicomical''' is a [[5-limit]] [[regular temperament|temperament]] that [[tempering out|tempers out]] the [[comma]] [[177147/163840]]. It is generated by a fifth (~[[3/2]]), which is typically sharper than in [[7edo]] but flatter than in [[flattone]] or [[flattertone]] (approximately 686-691{{cent}}). The ~[[5/4]] is reached by eleven fifths octave-reduced, which is an augmented third (C–E♯). A characteristic feature of deeptone is that the [[81/80|syntonic comma]] is tuned negative, represented by a diminished unison (C–C♭). This means that ~[[81/64]] is a ''submajor third'', tuned flatter than ~[[5/4]], and ~[[32/27]] is a ''supraminor third'', tuned sharper than ~[[6/5]]. It has high [[error]] because of its flat tuning of 3/2, although the well-known [[mavila]] temperament has a 3/2 that is much flatter still. It is rated as high-[[badness]] by most badness metrics due to the combination of high [[error]] and high [[complexity]], but it is still of a low enough badness to be usable. Four edos support deeptone in their [[patent val]] ([[7edo]], [[33edo]], [[40edo]], and [[47edo]]), and additionally there is the near-patent val [[54edo|54b-edo]]. | ||
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| 5 || major 7th || M7 || B || 1049.395 || [[243/128]] || [[24/13]] | | 5 || major 7th || M7 || B || 1049.395 || [[243/128]] || [[24/13]] | ||
|- | |- | ||
| 6 || aug 4th || A4 || | | 6 || aug 4th || A4 || F# || 539.274 || [[729/512]], [[320/243]] || [[18/13]] | ||
|- | |- | ||
| 7 || aug unison || A1 || C# || 29.153 || [[2187/2048]], [[81/80|80/81]] || [[27/26]] | | 7 || aug unison || A1 || C# || 29.153 || [[2187/2048]], [[81/80|80/81]] || [[27/26]] | ||