Deeptone: Difference between revisions
CompactStar (talk | contribs) No edit summary |
m Cleanup on infobox |
||
| (8 intermediate revisions by 4 users not shown) | |||
| Line 1: | Line 1: | ||
'''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. Four edos support deeptone in their [[patent val]] ([[7edo]], [[33edo]], [[40edo]], and [[47edo]]), and additionally there is the near-patent val [[54edo|54b-edo]]. | {{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 | |||
| Generators = 3/2 | |||
| Generators 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]]. | |||
See [[Syntonic–chromatic equivalence continuum #Deeptone a.k.a. tragicomical]] for technical data. | See [[Syntonic–chromatic equivalence continuum #Deeptone a.k.a. tragicomical]] for technical data. | ||
| Line 9: | Line 22: | ||
== Extensions == | == Extensions == | ||
Deeptone has an accurate [[13/8]], represented by the interval notated as a minor sixth, so it is very plausible to have a 2.3.5.13-[[subgroup]] [[extension]] tempering out both [[ | Deeptone has an accurate [[13/8]], represented by the interval notated as a minor sixth, so it is very plausible to have a 2.3.5.13-[[subgroup]] [[extension]] tempering out both [[2187/2080]] and [[1053/1024]] (the tridecimal quartertone). This also gives a more simple interpretation of deeptone's major and minor thirds as tridecimal neutral thirds [[16/13]] and [[39/32]] respectively. Tuning this deeptone extension in [[40edo]] results in essentially perfect tuning of [[13/8]] and [[16/13]], which is inherited from [[10edo]]. | ||
== Scales == | == Scales == | ||
| Line 37: | Line 50: | ||
| 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]] | ||
| Line 47: | Line 60: | ||
| 10 || aug 6th || A6 || A# || 898.79 || [[5/3]] || | | 10 || aug 6th || A6 || A# || 898.79 || [[5/3]] || | ||
|- | |- | ||
| 11 || aug 3rd || A3 || E# || 388. | | 11 || aug 3rd || A3 || E# || 388.669 || '''[[5/4]]''' || | ||
|- | |- | ||
| 12 || aug 7th || A7 || B# || 1078. | | 12 || aug 7th || A7 || B# || 1078.548 || [[15/8]] || | ||
|- | |||
| 13 || doubly-aug 4th || AA4 || Fx || 568.427 || [[45/32]] || | |||
|} | |} | ||
<nowiki/>* In 5-limit CTE tuning | <nowiki/>* In 5-limit CTE tuning | ||
| Line 57: | Line 71: | ||
<references/> | <references/> | ||
[[Category: | [[Category:Deeptone| ]] <!-- main article --> | ||
[[Category:Rank-2 temperaments]] | [[Category:Rank-2 temperaments]] | ||