Octave complement: Difference between revisions

m Added Wikipedia box, misc. edits
Improve lead section, second Wikipedia box, remove duplicate links from see also section, misc. edits
 
(One intermediate revision by one other user not shown)
Line 1: Line 1:
{{Wikipedia|Complement (music)}}
{{Wikipedia|Inversion (music) #Intervals}}
{{Wikipedia|Inversion (music) #Intervals}}
The '''octave complement''' or '''inverse interval''' of an [[interval]] is its interval distance from the [[octave]]. It can be seen as a binary symmetric relation over intervals. The concept is important in musical practice and most musical theories. Its use is typically restricted to [[octave-reduced]] intervals (including the octave).
The '''octave complement''' or '''inverse interval''' of an [[interval]] is its difference with the [[octave]]. It can be seen as a binary symmetric relation over intervals. The concept is important in musical practice and most musical theories. Its use is typically restricted to [[octave-reduced]] intervals (including the octave).
 
The octave complement is often simply called '''complement''' in the context of octave-[[equivalent]] scales, but the broader concept of ''complement'' can also apply to other intervals, such as the [[fifth complement]], the [[fourth complement]] and the [[tritave complement]].


== Calculation ==
== Calculation ==
Line 84: Line 87:


== See also ==
== See also ==
 
* [[Ratio math]]
* [[Octave reduction]]
* [[Fifth complement]] -- the analogue for the [[3/2|fifth (3/2)]]
* [[Fourth complement]]  -- the analogue for the [[4/3|fourth (4/3)]]
* [[Tritave complement]] -- the analogue for the [[tritave|tritave (3/1)]]


[[Category:Terms]]
[[Category:Terms]]
[[Category:Theory]]
[[Category:Interval]]
[[Category:Interval]]
[[Category:Octave]]
[[Category:Octave]]
[[Category:Method]]
[[Category:Method]]