Editing Key signature (section)

==Major scale structure==
===Scales with sharp key signatures===
There can be up to seven sharps in a key signature, appearing in this order: {{nowrap|F{{music|sharp}} C{{music|sharp}} G{{music|sharp}} D{{music|sharp}} A{{music|sharp}} E{{music|sharp}} B{{music|sharp}}}}.<ref name="Bower">Bower, Michael. 2007. "[http://www.empire.k12.ca.us/capistrano/Mike/capmusic/Key%20Signatures/key_signatures.htm All about Key Signatures] {{Webarchive|url=https://web.archive.org/web/20100311182612/http://www.empire.k12.ca.us/capistrano/mike/capmusic/key%20signatures/key_signatures.htm |date=2010-03-11 }}". Modesto, CA: Capistrano School (K–12) website. (Accessed 17 March 2010).</ref><ref name="Jones">Jones, George Thaddeus. 1974. ''Music Theory: The Fundamental Concepts of Tonal Music Including Notation, Terminology, and Harmony'', p.35. Barnes & Noble Outline Series 137. New York City, Hagerstown, San Francisco, London: [[Barnes & Noble]]. {{ISBN|978-0-06-460137-5}}.</ref> The key note or [[Tonic (music)|tonic]] of a piece in a major key is a semitone above the last sharp in the signature.<ref name="Kennedy">Kennedy, Michael. 1994. "Key-Signature". ''Oxford Dictionary of Music'', second edition, associate editor, Joyce Bourne. Oxford and New York: Oxford University Press. {{ISBN|0-19-869162-9}}.</ref> For example, the key of D major has a key signature of F{{music|sharp}} and C{{music|sharp}}, and the tonic (D) is a semitone above C{{music|sharp}}. Each scale starting on the [[Perfect fifth|fifth]] [[scale degree]] of the previous scale has one new sharp, added in the order shown.<ref name="Jones"/>
<!--Please do not change the sharp signs to number (#) signs.-->
{| class="wikitable"
|-
! Major key !! Number<br />of sharps !! Sharp notes !! Minor key !! Enharmonic<br />equivalent
|-
| [[C major]] || 0 || – || [[A minor]] ||rowspan="5"| None
|-
| [[G major]] || 1 || F{{music|sharp}} || [[E minor]]
|-
| [[D major]] || 2 || F{{music|sharp}}, C{{music|sharp}} || [[B minor]]
|-
| [[A major]] || 3 || F{{music|sharp}}, C{{music|sharp}}, G{{music|sharp}} || [[F-sharp minor|F{{music|sharp}} minor]]
|-
| [[E major]] || 4 || F{{music|sharp}}, C{{music|sharp}}, G{{music|sharp}}, D{{music|sharp}} || [[C-sharp minor|C{{music|sharp}} minor]]
|-
| [[B major]] || 5|| F{{music|sharp}}, C{{music|sharp}}, G{{music|sharp}}, D{{music|sharp}}, A{{music|sharp}} || [[G-sharp minor|G{{music|sharp}} minor]] || [[C-flat major|C{{music|flat}} major]]/[[A-flat minor|A{{music|flat}} minor]]
|-
| [[F-sharp major|F{{music|sharp}} major]] || 6 || F{{music|sharp}}, C{{music|sharp}}, G{{music|sharp}}, D{{music|sharp}}, A{{music|sharp}}, E{{music|sharp}} || [[D-sharp minor|D{{music|sharp}} minor]] || [[G-flat major|G{{music|flat}} major]]/[[E-flat minor|E{{music|flat}} minor]]
|-
| [[C-sharp major|C{{music|sharp}} major]] || 7 || F{{music|sharp}}, C{{music|sharp}}, G{{music|sharp}}, D{{music|sharp}}, A{{music|sharp}}, E{{music|sharp}}, B{{music|sharp}} || [[A-sharp minor|A{{music|sharp}} minor]] || [[D-flat major|D{{music|flat}} major]]/[[B-flat minor|B{{music|flat}} minor]]
|}

===Scales with flat key signatures===
There can be up to seven flats in a key signature, applied as: {{nowrap|B{{music|flat}} E{{music|flat}} A{{music|flat}} D{{music|flat}} G{{music|flat}} C{{music|flat}} F{{music|flat}}}}<ref name="Bower"/><ref name="Jones"/> The major scale with one flat is F major. In all major scales with flat key signatures, the tonic in a major key is a perfect fourth below the last flat. When there is more than one flat, the tonic is the note of the second-to-last flat in the signature.<ref name="Kennedy"/> In the major key with four flats (B{{music|flat}} E{{music|flat}} A{{music|flat}} D{{music|flat}}), for example, the second to last flat is A{{music|flat}}, indicating a key of A{{music|flat}} major. Each new scale starts a fifth ''below'' (or a [[Perfect fourth|fourth]] above) the previous one.

{| class="wikitable"
|-
! Major key !! Number<br />of flats !! Flat notes !! Minor key !! Enharmonic<br />equivalent
|-
| [[C major]] || 0 || – || [[A minor]] ||rowspan="5"| None
|-
| [[F major]] || 1 || B{{music|flat}} || [[D minor]]
|-
| [[B-flat major|B{{music|flat}} major]] || 2 || B{{music|flat}}, E{{music|flat}} || [[G minor]]
|-
| [[E-flat major|E{{music|flat}} major]] || 3 || B{{music|flat}}, E{{music|flat}}, A{{music|flat}} || [[C minor]]
|-
| [[A-flat major|A{{music|flat}} major]] || 4 || B{{music|flat}}, E{{music|flat}}, A{{music|flat}}, D{{music|flat}} || [[F minor]]
|-
| [[D-flat major|D{{music|flat}} major]] || 5 || B{{music|flat}}, E{{music|flat}}, A{{music|flat}}, D{{music|flat}}, G{{music|flat}} || [[B-flat minor|B{{music|flat}} minor]] || [[C-sharp major|C{{music|sharp}} major]]/[[A-sharp minor|A{{music|sharp}} minor]]
|-
| [[G-flat major|G{{music|flat}} major]] || 6 || B{{music|flat}}, E{{music|flat}}, A{{music|flat}}, D{{music|flat}}, G{{music|flat}}, C{{music|flat}} || [[E-flat minor|E{{music|flat}} minor]] || [[F-sharp major|F{{music|sharp}} major]]/[[D-sharp minor|D{{music|sharp}} minor]]
|-
| [[C-flat major|C{{music|flat}} major]] || 7 || B{{music|flat}}, E{{music|flat}}, A{{music|flat}}, D{{music|flat}}, G{{music|flat}}, C{{music|flat}}, F{{music|flat}} || [[A-flat minor|A{{music|flat}} minor]] || [[B major]]/[[G-sharp minor|G{{music|sharp}} minor]]
|}