Deeptone: Difference between revisions

mNo edit summary
CompactStar (talk | contribs)
No edit summary
Line 9: Line 9:


== 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 [[177147/163840]] 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]].
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 [[177147/163840]] 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 15: Line 15:


== Interval chain ==
== Interval chain ==
In the following table, prime harmonics are labeled in '''bold'''.  
In the following table, prime harmonics and subharmonics are labeled in '''bold'''.  


{| class="wikitable center-1 right-2"
{| class="wikitable center-1 right-2"
Line 27: Line 27:
| 0 || perfect unison || P1 || C || 0.0 || [[1/1]] ||
| 0 || perfect unison || P1 || C || 0.0 || [[1/1]] ||
|-
|-
| 1 || perfect 5th || P5 || G || 689.879 || [[3/2]] ||
| 1 || perfect 5th || P5 || G || 689.879 || '''[[3/2]]''' ||
|-
|-
| 2 || major 2nd || M2 || D || 179.758 || [[9/8]] || [[128/117]]
| 2 || major 2nd || M2 || D || 179.758 || [[9/8]] || [[128/117]]
Line 33: Line 33:
| 3 || major 6th || M6 || A || 869.637 || [[27/16]] || [[64/39]]
| 3 || major 6th || M6 || A || 869.637 || [[27/16]] || [[64/39]]
|-
|-
| 4 || major 3rd || M3 || E || 359.516 || [[81/64]] || [[16/13]]
| 4 || major 3rd || M3 || E || 359.516 || [[81/64]] || '''[[16/13]]'''
|-
|-
| 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 || G# || 539.274 || [[729/512]], [[320/243]] || [[18/13]]
| 6 || aug 4th || A4 || G# || 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]]
|-
| 8 || aug 5th || A5 || G# || 719.032 || [[40/27]] ||
|-
| 9 || aug 2nd || A2 || D# || 208.911 || [[10/9]] ||
|-
| 10 || aug 6th || A6 || A# || 898.79 || [[5/3]] ||
|-
| 11 || aug 3rd || A3 || E# || 388.67 || '''[[5/4]]''' ||
|-
| 12 || aug 7th || A7 || B# || 1078.55 || [[15/8]] ||
|}
|}
<nowiki/>* In 5-limit CTE tuning
<nowiki/>* In 5-limit CTE tuning