Octave (interval region): Difference between revisions

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| Monzo = 1

| Cents = 1200

| Name = octave

| Name = octave, <br>ditave, <br>diapason

| Color name = w8, wa 8ve

| Sound = jid_2_1_pluck_adu_dr220.mp3

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== Octave equivalence ==

The octave is usually called the "'''interval of equivalence'''" because tones separated by an octave are perceived to have the same or similar pitch class to the average human listener. The reason for this phenomenon is probably due to the strong region of attraction of low [[harmonic entropy]], or the strong amplitude of the second [[harmonic]] in most harmonic instruments.

The octave is usually called the '''interval of equivalence''', because tones separated by an octave are perceived to have the same or similar pitch class to the average human listener. The reason for this phenomenon is probably due to the strong region of attraction of low [[harmonic entropy]], or the strong amplitude of the second [[harmonic]] in most harmonic instruments.

An article in ''Current Biology'' shows that octave equivalence might be a cultural phenomenon, it also includes an 8-minute video. <ref>[https://www.cell.com/current-biology/fulltext/S0960-9822(19)31036-X?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS096098221931036X%3Fshowall%3Dtrue Universal and Non-universal Features of Musical Pitch Perception Revealed by Singing: Current Biology]</ref>

== Alternate names ==

'''Ditave''' is an alternative name for the interval 2/1, which was proposed to neutralize the terminology against the predominance of 7-tone scales. The name is derived from the numeral prefix ''δι''- (''di-'', Greek for "two") in analogy to "[[tritave]]" (3/1). A brief but complementary description about it is [[:purdal:Ditave|here]].

'''Diapason''' is another term also sometimes applied to 2/1. It is also of Greek origin, but not related to the number two; instead it is formed from ''διά'' (''dia'') + ''πασων'' (''pason''), meaning something like "through all the notes".

== See also ==

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* [[Toctave]]

* [[EDO]]

* [[Ditave]] - an alternative more neutral name

* [[Octave reduction]]

* [[Octave complement]]

@@ Line 4: / Line 4: @@
 | Monzo = 1
 | Cents = 1200
-| Name = octave
+| Name = octave, <br>ditave, <br>diapason
 | Color name = w8, wa 8ve
 | Sound = jid_2_1_pluck_adu_dr220.mp3
@@ Line 21: / Line 21: @@
 == Octave equivalence ==
-The octave is usually called the "'''interval of equivalence'''" because tones separated by an octave are perceived to have the same or similar pitch class to the average human listener. The reason for this phenomenon is probably due to the strong region of attraction of low [[harmonic entropy]], or the strong amplitude of the second [[harmonic]] in most harmonic instruments.
+The octave is usually called the '''interval of equivalence''', because tones separated by an octave are perceived to have the same or similar pitch class to the average human listener. The reason for this phenomenon is probably due to the strong region of attraction of low [[harmonic entropy]], or the strong amplitude of the second [[harmonic]] in most harmonic instruments.
 An article in ''Current Biology'' shows that octave equivalence might be a cultural phenomenon, it also includes an 8-minute video. <ref>[https://www.cell.com/current-biology/fulltext/S0960-9822(19)31036-X?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS096098221931036X%3Fshowall%3Dtrue Universal and Non&#45;universal Features of Musical Pitch Perception Revealed by Singing&#58; Current Biology]</ref>
+== Alternate names ==
+'''Ditave''' is an alternative name for the interval 2/1, which was proposed to neutralize the terminology against the predominance of 7-tone scales. The name is derived from the numeral prefix ''δι''- (''di-'', Greek for "two") in analogy to "[[tritave]]" (3/1). A brief but complementary description about it is [[:purdal:Ditave|here]].
+'''Diapason''' is another term also sometimes applied to 2/1. It is also of Greek origin, but not related to the number two; instead it is formed from ''διά'' (''dia'') + ''πασων'' (''pason''), meaning something like "through all the notes".
 == See also ==
@@ Line 31: / Line 37: @@
 * [[Toctave]]
 * [[EDO]]
-* [[Ditave]] - an alternative more neutral name
 * [[Octave reduction]]
 * [[Octave complement]]