Functional harmony functions

[Cliff]

Beginners question:

 

Does OM have system functions which simplify programmatic defining chord progressions in a advanced functional harmony style (i.e for Jazz) beyond normal diatonic harmony.

These function may comply to Riemann nomenclature, i.e.  utilizing as input a landing tonic.

 

Examples:

I want 4 chords, the tonic T i(c4 maj7) is the final chord, before lets approach it with a  sequence of chained secondary dominants.

I want the tritone substitution of a V7 chord, like g4 7, before playing c maj7.

I want II/V progression before arriving at tonic.

[Stephane Boussuge]

harmonic-progression degree scale &key size step

root row chord flatten base

[Cliff]

Thx Stephane,

I do not understand how the function should be of any help for the examples 1&2. Can you elaborate?

Example 3 yes understood.

[Cliff]

For example 1:

(closest-path (flatten
               (harmonic-progression '((5)
                                       (5)
                                       (5) 
                                       (1)) 
                                     '((d major)
                                       (g major)
                                       (c major)
                                       (c major))
                                     :base 1 :size 4)))

Correct ?

[Cliff]

For example 2:

(make-omn
 :pitch (flatten 
         (closest-path 
          (harmonic-progression '((5)(5)(1)) 
                                '((db major)
                                  (c major)
                                  (c major)) 
                                :base 1 :size 4)))
 :length '(h h w ))

Correct ?

[Stephane Boussuge]

Yes, correct.