jwbensley/music-theory-reference

Music theory reference sheets using Lilypond

music-theory-reference's Issues

Add enharmonic notes to the reference

https://en.m.wikipedia.org/wiki/Enharmonic

Add Penatonic Scales

From: https://en.wikipedia.org/wiki/Pentatonic_scale#The_pentatonic_scales_found_by_running_up_the_keys_C,_D,_E,_G_and_A

Tonic	Name(s)	Base scale degrees	On C
1 (C)	Major pentatonic	Major heptatonic I-II-III-V-VI (Omit 4 7)	C D E G A C
2 (D)	Egyptian, suspended	Natural minor I-II-IV-V-VII (Omit 3 6)	C D F G B♭ C
3 (E)	Blues minor	Natural minor I-III-IV-VI-VII (Omit 2 5)	C E♭ F A♭ B♭ C
5 (G)	Blues major	Major heptatonic I-II-IV-V-VI (Omit 3 7)	C D F G A C
6 (A)	Minor pentatonic	Natural minor I-III-IV-V-VII (Omit 2 6)	C E♭ F G B♭ C

Add Major and Minor Triads

Formula == root + major third + minor third.
C major triad == root (c), major third (e), minor third (g).
F major triad == root (f), major third (a), minor third (c).
G major triad == root (g), major third (b), minor third (d).
Etc.

Formula == root + minor third + major third.
C minor triad == root (c), flat third / minor third (e♭), perfect fifth / major third (g).
F minor triad == root (f), minor third (a♭), major third (c).
G minor triad == root (g), minor third (b♭), major third (d).

Note: A perfect fifth spans 7 semitones

Chord references:
https://en.wikipedia.org/wiki/Major_chord#Major_chord_table
https://en.wikipedia.org/wiki/Minor_chord#Minor_chord_table

Add Sevenths Chords

Semitone Reference:
https://en.wikipedia.org/wiki/List_of_meantone_intervals
Minor 3rd == 3 semitones
Major 3rd == 4 semitones
Perfect 4th == 5 semitones
Diminished 5th == 6 semitones
Perfect 5th == 7 semitones
Diminished 7th == 9 semitones
Minor 7th == 10 semitones
Major 7th == 11 semitones

Major 7th's:
"a major triad together with a major seventh"
https://en.wikipedia.org/wiki/Major_seventh_chord#Major_seventh_chord_table
Formula == root + major third + perfect fifth / minor third + major seventh / major third.
Cmaj7 == root (c), major third (e), perfect fifth (g), major seventh (b).
Fmaj7 == root (f), major third (a), minor third (c), major third (e).
Gmaj7 == root (g), major third (b), perfect fifth (d), major seventh (F♯).

Minor 7th's:
"a minor triad together with a minor seventh"
https://en.wikipedia.org/wiki/Minor_seventh_chord#Minor_seventh_chord_table
Formula == root + minor third + perfect fifth / major third + minor seventh / minor third.
Cm7 == root (c), minor third (e♭), perfect fifth (g), minor seventh (b♭).
Fm7 == root (f), minor third (a♭), major third (c), minor third (e♭).
Gm7 == root (g), minor third (b♭), perfect fifth (d), minor seventh (F).

Dominant 7th's:
"a major triad together with a minor seventh"
https://en.wikipedia.org/wiki/Dominant_seventh_chord#Dominant_seventh_chord_table
Formula == root + major third + perfect fifth / minor third + minor seventh / minor third.
C7 == root (c), major third (e), perfect fifth (g), minor seventh (b♭).
F7 == root (f), major third (a), minor third (c), minor third (e♭).
G7 == root (g), major third (b), perfect fifth (d), minor seventh (F).

Diminished 7th's:
"A diminished triad with a diminished seventh"
https://en.wikipedia.org/wiki/Diminished_seventh_chord#Diminished_seventh_chord_table
Formula == root + minor third + diminished fifth / minor third + diminished seventh / minor third.
Co7 / Cdim7 == root (c), minor third (e♭), diminished fifth (g♭), diminished seventh (b♭♭ / a♮).
Fo7 / Fdim7== root (f), minor third (a♭), minor third (c♭ / d♮), minor third (e♭♭ / d).
Go7 / Gdim7 == root (g), minor third (b♭), diminished fifth (d♭), diminished seventh (F♭ / e♮).

Add chords for each scale

For example, the chords of the C major scale:

Chord I, C major consists of the notes, C – E – G
Chord ii, D minor consists of the notes, D – F – A
Chord iii, E minor contains the notes, E – G – B
Chord IV, F major contains the notes, F – A – C
Chord V, G major contains the notes, G – B – D
Chord vi, A minor consists of the notes, A – C – E
Chord vii°, B diminished consists of the notes, B – D – F.

Add trebble cleff for all scales

Add trebble cleff for scales

Add Arpeggios

Add arpeggios.

Add key signatures

Add key signatures to the stave, for example:

https://qph.fs.quoracdn.net/main-qimg-052d6d73b7bd8e87528ce10f0165c221
https://www.piano-keyboard-guide.com/wp-content/uploads/2015/05/music-key-signatures.gif

Add dominant seventh flat five chords

https://en.wikipedia.org/wiki/Dominant_seventh_flat_five_chord