Editing Solfège (section)

====Chromatic variants====
Several chromatic fixed-do systems have also been devised to account for [[chromatic notes]], and even for [[double-sharp]] and [[double-flat]] variants. The [[Yehnian]] system, being the first [[24-EDO]] (i.e., quarter tone) solfège system, proposed even quartertonal syllables. While having no exceptions to its rules, it supports both si and ti users.

{|class="wikitable" style="text-align:center"
|+ Chromatic variants of fixed do
|- style="vertical-align:top;"
!colspan="2"|Note name
! colspan="8" |Syllable
|- style="vertical-align:top;"
! ''English'' !! ''[[Romance languages|Romance]]''
! ''Traditional''<br><ref name="Demorest" />
! ''{{nowrap|5 sharps, }}{{nowrap|5 flats}}''<br><ref name="Demorest"/><ref>
{{Cite book
  |last1     = Benjamin
  |first1    = Thomas
  |last2     = Horvit
  |first2    = Michael
  |last3     = Nelson
  |first3    = Robert
  |title     = Music for Sight Singing
  |edition   = 4th
  |year      = 2005
  |publisher = Thompson Schirmer
  |location  = Belmont, CA
  |isbn      = 978-0-534-62802-4
  |pages     = x–xi
}}</ref><ref>
{{Cite book
  |last      = White
  |first     = John D.
  |title     = Guidelines for College Teaching of Music Theory
  |url       = https://books.google.com/books?id=eGZRT6WYQDQC&pg=PA34
  |edition   = 2nd
  |year      = 2002
  |publisher = Scarecrow Press
  |location  = Lanham, MD
  |isbn      = 978-0-8108-4129-1
  |page      = 34
}}</ref>
! ''Hullah''<br><ref name="Hullah">
{{Cite book
  |last       = Hullah
  |first      = John
  |author-link = John Pyke Hullah
  |title      = Hullah's Method of Teaching Singing
  |url        = https://archive.org/details/hullahsmethodte00hullgoog
  |edition    = 2nd
  |year       = 1880
  |publisher  = Longmans, Green and Co.
  |location   = London
  |pages      = xi–xv
  |isbn       = 0-86314-042-4
}}</ref>
! ''Shearer''<br><ref name="Shearer">
{{Cite book
  |last      = Shearer
  |first     = Aaron
  |author-link = Aaron Shearer
  |title     = Learning the Classical Guitar, Part 2: Reading and Memorizing Music
  |url       = https://books.google.com/books?id=gzI7056gnZ4C&pg=PA209
  |year      = 1990
  |publisher = Mel Bay
  |location  = Pacific, MO
  |isbn      = 978-0-87166-855-4
  |page      = 209
}}</ref>
! ''Siler''<br><ref name="Siler">{{Cite journal | doi = 10.2307/3343838 | journal = Journal of Research in Music Education | year = 1956 | volume = 4 | issue = 1 | title = Toward an International Solfeggio | pages = 40–43 | last1 = Siler | first1 = H.| jstor = 3343838 | s2cid = 146618023 }}</ref>
! ''Latoni''<br><ref name="Latoni">{{Cite book | title = Das mathematisch-reine Tonsystem | author = Carl Eitz | year = 1891}}</ref>
! ''Yehnian (chromatic)''
(Si users / Ti users)''<ref name="Yehnian Solfège">
{{cite web|last=Yeh|first=Huai-Jan|date=12 February 2021|title=Yehnian Solfège / 葉氏唱名 / Solfeggio Yehniano|url=https://renoyeh.wixsite.com/notes/post/yehnian-solf%C3%A8ge-solfeggio-yehniano-%E8%91%89%E6%B0%8F%E5%94%B1%E5%90%8D|access-date=1 March 2021|website=Reno's Music Notes|quote=...&nbsp;The Yehnian Solfège is an intuitive, easily adoptable, and professionally capable quartertonal solfège system&nbsp;...}}</ref>''
! ''Pitch Class''
|-
|style="border-top-width:2px"|{{nowrap|C{{music|doubleflat}}}}
|style="border-top-width:2px"|{{nowrap|Do{{music|doubleflat}}}}
|style="border-top-width:2px" rowspan="5"|do
|style="border-top-width:2px"|–
|style="border-top-width:2px"|duf
|style="border-top-width:2px"|daw
|style="border-top-width:2px"|du
|style="border-top-width:2px"|Ka
|style="border-top-width:2px"|Dɚ
|style="border-top-width:2px"|10
|-
|[[C♭ (musical note)|C{{music|flat}}]]||Do{{music|flat}}
|–||du||de||do||Ne||Də||11
|-
|'''[[C (musical note)|C]]'''||'''Do'''
|do||do||do||da||Bi||Do||0
|-
|[[C♯ (musical note)|C{{music|sharp}}]]||Do{{music|sharp}}
|di||da||di||de||Ro||Du||1
|-
|{{nowrap|C{{music|doublesharp}}}}||{{nowrap|Do{{music|doublesharp}}}}
|–||das||dai||di||Tu||Dü||2
|- style="background:#f2f2f2"
|style="border-top-width:2px"|{{nowrap|D{{music|doubleflat}}}}
|style="border-top-width:2px"|{{nowrap|Re{{music|doubleflat}}}}
|style="border-top-width:2px" rowspan="5"|re
|style="border-top-width:2px"|–
|style="border-top-width:2px"|raf
|style="border-top-width:2px"|raw
|style="border-top-width:2px"|ru
|style="border-top-width:2px"|Be
|style="border-top-width:2px"|Rɚ
|style="border-top-width:2px"|0
|- style="background:#f2f2f2"
|[[D♭ (musical note)|D{{music|flat}}]]||Re{{music|flat}}
|ra||ra||ra||ro||Ri||Rə||1
|- style="background:#f2f2f2"
|'''[[D (musical note)|D]]'''||'''Re'''
|re||re||re||ra||To||Re||2
|- style="background:#f2f2f2"
|[[D♯ (musical note)|D{{music|sharp}}]]||Re{{music|sharp}}
|ri||ri||ri||re||Mu||Ru||3
|- style="background:#f2f2f2"
|{{nowrap|D{{music|doublesharp}}}}||{{nowrap|Re{{music|doublesharp}}}}
|–||ris||rai||ri||Ga||Rü||4
|-
|style="border-top-width:2px"|{{nowrap|E{{music|doubleflat}}}}
|style="border-top-width:2px"|{{nowrap|Mi{{music|doubleflat}}}}
|style="border-top-width:2px" rowspan="5"|mi
|style="border-top-width:2px"|–
|style="border-top-width:2px"|mef
|style="border-top-width:2px"|maw
|style="border-top-width:2px"|mu
|style="border-top-width:2px"|Ti
|style="border-top-width:2px"|Mɚ
|style="border-top-width:2px"|2
|-
|[[E♭ (musical note)|E{{music|flat}}]]||Mi{{music|flat}}
|me||me||me||mo||Mo||Mə||3
|-
|'''[[E (musical note)|E]]'''||'''Mi'''
|mi||mi||mi||ma||Gu||Mi||4
|-
|[[E♯ (musical note)|E{{music|sharp}}]]||Mi{{music|sharp}}
|–||mis||mai||me||Sa||Mu||5
|-
|{{nowrap|E{{music|doublesharp}}}}||{{nowrap|Mi{{music|doublesharp}}}}
|–||mish||–||mi||Pe||Mi||6
|- style="background:#f2f2f2"
|style="border-top-width:2px"|{{nowrap|F{{music|doubleflat}}}}
|style="border-top-width:2px"|{{nowrap|Fa{{music|doubleflat}}}}
|style="border-top-width:2px" rowspan="5"|fa
|style="border-top-width:2px"|–
|style="border-top-width:2px"|fof
|style="border-top-width:2px"|faw
|style="border-top-width:2px"|fu
|style="border-top-width:2px"|Mi
|style="border-top-width:2px"|Fɚ
|style="border-top-width:2px"|3
|- style="background:#f2f2f2"
|[[F♭ (musical note)|F{{music|flat}}]]||Fa{{music|flat}}
|–||fo||fe||fo||Go||Fə||4
|- style="background:#f2f2f2"
|'''[[F (musical note)|F]]'''||'''Fa'''
|fa||fa||fa||fa||Su||Fa||5
|- style="background:#f2f2f2"
|[[F♯ (musical note)|F{{music|sharp}}]]||Fa{{music|sharp}}
|fi||fe||fi||fe||Pa||Fu||6
|- style="background:#f2f2f2"
|{{nowrap|F{{music|doublesharp}}}}||{{nowrap|Fa{{music|doublesharp}}}}
|–||fes||fai||fi||Le||Fü||7
|-
|style="border-top-width:2px"|{{nowrap|G{{music|doubleflat}}}}
|style="border-top-width:2px"|{{nowrap|Sol{{music|doubleflat}}}}
|style="border-top-width:2px" rowspan="5"|sol
|style="border-top-width:2px"|–
|style="border-top-width:2px"|sulf
|style="border-top-width:2px"|saw
|style="border-top-width:2px"|su
|style="border-top-width:2px"|So
|style="border-top-width:2px"|Sɚl / Sɚ
|style="border-top-width:2px"|5
|-
|[[G♭ (musical note)|G{{music|flat}}]]||Sol{{music|flat}}
|se||sul||se||so||Pu||Səl / Sə||6
|-
|'''[[G (musical note)|G]]'''||'''Sol'''
|sol||sol||so||sa||La||Sol||7
|-
|[[G♯ (musical note)|G{{music|sharp}}]]||Sol{{music|sharp}}
|si||sal||si||se||De||Sul / Su||8
|-
|{{nowrap|G{{music|doublesharp}}}}||{{nowrap|Sol{{music|doublesharp}}}}
|–||sals||sai||si||Fi||Sül / Sü||9
|- style="background:#f2f2f2"
|style="border-top-width:2px"|{{nowrap|A{{music|doubleflat}}}}
|style="border-top-width:2px"|{{nowrap|La{{music|doubleflat}}}}
|style="border-top-width:2px" rowspan="5"|la
|style="border-top-width:2px"|–
|style="border-top-width:2px"|lof
|style="border-top-width:2px"|law
|style="border-top-width:2px"|lu
|style="border-top-width:2px"|Lu
|style="border-top-width:2px"|Lɚ
|style="border-top-width:2px"|7
|- style="background:#f2f2f2"
|[[A♭ (musical note)|A{{music|flat}}]]||La{{music|flat}}
|le||lo||le||lo||Da||Lə||8
|- style="background:#f2f2f2"
|'''[[A (musical note)|A]]'''||'''La'''
|la||la||la||la||Fe||La||9
|- style="background:#f2f2f2"
|[[A♯ (musical note)|A{{music|sharp}}]]||La{{music|sharp}}
|li||le||li||le||Ki||Lu||10
|- style="background:#f2f2f2"
|{{nowrap|A{{music|doublesharp}}}}||{{nowrap|La{{music|doublesharp}}}}
|–||les||lai||li||No||Lü||11
|-
|style="border-top-width:2px"|{{nowrap|B{{music|doubleflat}}}}
|style="border-top-width:2px"|{{nowrap|Si{{music|doubleflat}}}}
|style="border-top-width:2px" rowspan="5"|si
|style="border-top-width:2px"|–
|style="border-top-width:2px"|sef
|style="border-top-width:2px"|taw
|style="border-top-width:2px"|tu
|style="border-top-width:2px"|Fa
|style="border-top-width:2px"|Sɚ / Tɚ
|style="border-top-width:2px"|9
|-
|[[B♭ (musical note)|B{{music|flat}}]]||Si{{music|flat}}
|te||se||te||to||Ke||Sə / Tə||10
|-
|'''[[B (musical note)|B]]'''||'''Si'''
|ti||si||ti||ta||Ni||Si / Ti||11
|-
|[[B♯ (musical note)|B{{music|sharp}}]]||Si{{music|sharp}}
|–||sis||tai||te||Bo||Su / Tu||0
|-
|{{nowrap|B{{music|doublesharp}}}}||{{nowrap|Si{{music|doublesharp}}}}
|–||sish||–||ti||Ru||Sü / Tü||1
|- style="background:#f2f2f2"
| colspan="13" style="border-top-width:2px" |''A dash ("–") means that the source(s) did not specify a syllable.''
|}