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Blue Bossa

Blue Bossa

Roadmap through Blue Bossa - aka Remembering those pesky changes.

Learning Blue Bossa by Kenny Durham

A “road map” through the chords of Blue Bossa

Blue Bossa

by Kenny Durham

Common Keys: Cm
First Melodic Interval: P5 ↑ Octave
Form: A B

Chords

| Cm7 | Cm7 | Fm7 | Fm7 |

| Dm7b5 | G7 | Cm7 | Cm7 |

| Ebm7 | Ab7 | DbΔ7 | DbΔ7 |

| Dm7b5 | G7 | Cm7 | Cm7 ||

RMA

Cm: I IV II V

Db: II V I

Cm: II V I

Triggers

kc(-) I IV II V I ↑m3 kc(Δ) II V I ↑m2 kc(-) II V I

Modulates between the home minor key and the major key up a minor second.

I minor then up a perfect fourth to m7. II V back to the Im of the starting key. Up a minor third and II V I major. Up a half step and II V I minor key.

Reference

Back to song index…

Triggers Notation Key

The short hand notation that I use is explained here.

click to show or hide or section

Roman Numerals

Uppercase Roman Numerals indicate a chord function within its harmonized scale.

Intervalic Distances

  • Symbol = Interval Type
  • prime or ' = Prime (same root) chord species changes
  • M or Δ = Major
  • m or - = Minor
  • P = Perfect, used for perfect fourths or fifths
  • dim or º = Diminished
  • aug or + = Augmented
  • tri = Tritone (+4 or b5)

Direction

  • ↑ or > = UP (↑) by interval indicated. ie ↑m2, ↑P4
  • ↓ or < = DOWN (↓) by interval indicated. ie ↓m2, ↓P4

Harmonic Notation

  • kc = Back to the main key center or tonality of song.
  • kc() = Modulation to new key center relative to main key center.ie kc(↑ P4) would be a modulation up a perfect fourth from the song's main key center.
  • prime ´ = Prime Modulation, root same chord type changes
  • rmi = Relative Minor Modulation relative to main key center
  • pmi = Parallel Minor Modulation relative to main key center
  • rma = Relative Major Modulation relative to main key center
  • pma = Parallel Major Modulation relative to main key center
  • TB = Turnback - This is typically one or two bars in duration and leads back to an A section or to a new section.

Common Harmonic Priniciples

cyl()

Cycle - 3 of more chords the same intervalic distance apart and the same chord species. cyl(x, y, z) x = number of chords in cycle, x = interval and ↑ or ↓ direction, y = chord type.
   ie cyl(4, P4 ↓, 7th)

FD cyl()

FD cyl - Full Diatonic cycle starting on chord Y. Default is major. if not major indicate scale or mode
   ie cyl(Δ, VI ↓ IV)
   ie cyl(-, VI ↓ IV)
   ie cyl(DOR, VI ↓ IV)

RC cyl()

RC cyl - Rhythm Changes Cycle. Default starts on III7 of key center and cycles thru 4 dominant 7th chords shortcut for cyl(4, P4 ↓, 7th). see Stompin' at the Savoy for ↑P4 RC cyl().

pi3

Picardy Third - Minor II V resolving to a major I. ie Am7b5 D7 Gmaj7

ur()

Unresolved - Typically a
that does not resolve to its I chord. Δ for major (eg Dm7 G7)
- or mi for minor (Dm7b5 G7)

/

Double Functions Chords - Setting up a modulation to new key center.

The following symbols are used to indicate form.

  • :] = Repeat(s) :] or [:    :] followed by x and a number if more that the standard repeat
  • a) = Rehearsal Letters. A, B, C, D, etc...
  • coda = Standard coda used in music
  • D.S. = Standard D.S. used in music

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BLUEBOSSA.PHP | Updated: Tuesday, 09th March, 2010 @ 07:57am

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