View source for 16ifdo

{{Infobox IFDO|steps=16}}
'''16ifdo''' ([[IFDO|inverse-arithmetic frequency division of the octave]]), or '''16udo''' ([[utonal division]] of the octave), if the attempt is made to use it as an actual [[tuning system]], would divide the [[octave]] into sixteen inverse-arithmetically equal parts. It is a superset of [[15ifdo]] and a subset of [[17ifdo]], its inverse is [[16afdo]]. As a [[scale]] it may also be known as mode 16 of the subharmonic series or the Under-16 scale

== Intervals ==
{| class="wikitable center-all"
! #
! Cents
! Ratio
! Interval name
! Audio
|-
| 0
| 0.00
| [[1/1]]
| perfect unison
| 
|-
| 1
| 54.964
| [[32/31]]
| small tricesimoprimal quartertone
| [[File:Ji-32-31-csound-foscil-220hz.mp3]]
|-
| 2
| 111.731
| [[16/15]]
| just diatonic semitone
| [[File:Jid_16_15_pluck_adu_dr220.mp3]]
|-
| 3
| 170.423
| [[32/29]]
| vicesimononal submajor second
|
|-
| 4
| 231.174
| [[8/7]]
| septimal major second
| [[File:Jid_8_7_pluck_adu_dr220.mp3]]
|-
| 5
| 294.135
| [[32/27]]
| Pythagorean minor third
| [[File:Jid_32_27_pluck_adu_dr220.mp3]]
|-
| 6
| 359.472
| [[16/13]]
| (greater) tridecimal neutral third
| [[File:Jid_16_13_pluck_adu_dr220.mp3]]
|-
| 7
| 427.373
| [[32/25]]
| classic(al) diminished fourth
| [[File:Jid_32_25_pluck_adu_dr220.mp3]]
|-
| 8
| 498.045
| [[4/3]]
| just perfect fourth
| [[File:Jid_4_3_pluck_adu_dr220.mp3]]
|-
| 9
| 571.726
| [[32/23]]
| vicesimotertial narrow tritone
| [[File:Ji-32-23-csound-foscil-220hz.mp3]]
|-
| 10
| 648.682
| [[16/11]]
| undecimal subfifth
| [[File:Jid_16_11_pluck_adu_dr220.mp3]]
|-
| 11
| 729.219
| [[32/21]]
| septimal superfifth
| [[File:Jid_32_21_pluck_adu_dr220.mp3]]
|-
| 12
| 813.686
| [[8/5]]
| just minor sixth
| [[File:Jid_8_5_pluck_adu_dr220.mp3]]
|-
| 13
| 902.487
| [[32/19]]
| utonal major sixth
| [[File:Jid_32_19_pluck_adu_dr220.mp3]]
|-
| 14
| 996.090
| [[16/9]]
| Pythagorean minor seventh
| [[File:Jid_16_9_pluck_adu_dr220.mp3]]
|-
| 15
| 1095.045
| [[32/17]]
| septendecimal major seventh
| [[File:Jid_32_17_pluck_adu_dr220.mp3]]
|-
| 16
| 1200.000
| [[2/1]]
| octave
| [[File:Jid_2_1_pluck_adu_dr220.mp3]]
|}

== Music ==
; [[Francium]]
* [https://www.youtube.com/watch?v=xxz798pc7y8 ''Alive with Pleasure Cream Attack''] (2026)

[[Category:IFDO|##]]