[MIDI import for MPE (MIDI Polyphonic Expression)]

I own Ableton Push 3 and love its MPE (MIDI Polyphonic Expression) capabilities.

I wish I could record or import MIDI recorded with Push 3 to OM.

 

Are there other users with MPE keyboards like those from Linn or other manufactures with more simple aftertouch?

Any ideas?

[Timeline for upcoming books]

On 1/15/2024 at 3:54 PM, opmo said:

The second book in the series will be released in the spring.

Is it released already? Were can I buy?

[Functional harmony functions]

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 ?

[Functional harmony functions]

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 ?

[Functional harmony functions]

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.

[Chords symbols for 7/sus2 and 7/sus4]

The chord symbols for both look odd, can this be adjusted?

 

 

[Functional harmony functions]

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.

[dechord]

Thx @opmo understood,

so keyword :root  is not really what is typically tought as chord root (if I exclude pcs theory).

:low seems to be the "new" root.

 

Feedback, even if pcs-theory-wise justified, OM-API is a bit counter-intuitive here in my humble users point of view.

At least I suggest to make an extra note in the documentation so that other do not fall into the same trap as I did.

Yes I know the existing example indicates this surprise already, but please add your pcs "justification", this will explain the rationale.

 

(dechord (chord-inversion 0 (expand-chord '(c4 maj7))) :pitch 'low)

-> ((c4))

 

and

 

(dechord (chord-inversion 1 (expand-chord '(c4 maj7))) :pitch 'low)

->  ((e4))

[dechord]

I have the following chord progression:

 

(setf chords '((w (c4 maj7))
               (w (a4 m7))
               (w (d4 m7))
               (w (g4 7))
               ;
               (w (c4 maj7))
               (h (a4 m7/b5))
               (h (a4 m7))
               (h (d4 m7/b5))
               (h (d4 m7))
               (w (g4 7))
               ))

 

When evaluating following expression on it ...

 

(dechord chords :pitch 'root)

 

... I get following result in the listener:

 

((w b4 mf) (w e5 mf) (w a4 mf) (w b4 mf) (w b4 mf) (h g5 mf) (h e5 mf) (h c5 mf) (h a4 mf) (w b4 mf))

 

I expected the roots.

Am I doing something wrong?

 

---

 

EDIT:

Just played around with the other keyword options...

:pitch 'low

... return the expected result. Still I am confused.

 

 

Can someone explain the result with :pitch ‘root ?

[Counterpoint :harmony :time example]

Thx Stephane,

I am very surprised.

 

There is no way to define 2 chords as harmonies (as harmonic rhythm: (h h)) in one bar in Opusmodus counterpoint ?

 

I mean the desire for sometimes faster harmonic rhythm is pretty standard (i.e. in many Jazz progressions).

 

Again, I am just looking for a simple example how to achieve this (without defaulting to handle tonality after counterpoint, which certainly is a solution) and fail as I could not find it in the documentation.

Any advise whether it is feasible?

 

[Counterpoint :harmony :time example]

I have looked up the docu but could not find an example.

How do I use in counterpoint dictum the :harmony and :time keyword when I want to apply cmaj and fmaj harmonic path across all voices but each for the duration of half a bar only, while span is 4/4?

[Expand Chord Form]

With @opmos update:

 

setf chords (make-omn 
              :pitch (expand-chord simple-cadence)
              :length (gen-repeat 5 '(w))
              :articulation '(leg)))

[Expand Chord Form]

Wow, phantastic how responsive you all are, thx.

[Expand Chord Form]

Beginners question:

I specify a chord sequence using the very handy chord form notation.

(Please do not recommend changing this way of providing input.)

 

(setf simple-cadence '((c4 maj7) (f4 maj7) (f4 m7) (g4 7) (c4 maj7)))

 

Next I want to translate it into block chords:

 

(setf chords (make-omn 
              :pitch simple-cadence
              :length (gen-repeat 5 '(w))
              :articulation '(leg)))

 

Unfortunately this does not give chords:

 

 

 

I have seen 

expand-chord

function, but I can't get it work with a list. 

 

How can I use chord-form list in the make-omn :pitch parameter ?

[Symbolic folder path representation to current OM workspace]

@jon thanks a lot, just tried it and it works as intended.

[Symbolic folder path representation to current OM workspace]

No solution for this ?

[Silent Transformation 1 for Electronic]

Interesting piece, can you share the process of composition and Sound creation?

[PCS similarity calculation]

OM is a great learning device.

 

It also has great PCS support.

I learned that the equivalent of functions in tonal music is similarity in atonal music.

 

Is there in OM a system function to calculate the similarity as demonstrated here?

 

PC-set similarity calculator - Michael Norris, Composer

WWW.MICHAELNORRIS.INFO

---

v1.0 ©2014 Michael NorrisThis Javascript allows you to calculate the similarity functions between a list of different set-classes. It uses a number of similarity functions that have been published in peer-reviewed journals. Most of the them have

 

 

[Symbolic folder path representation to current OM workspace]

I am working as user xyz inside a OM workspace, in a non-standard folder (actually located inside an Ableton project, to keep things tidy and close to each other).

 

Example:

Ableton project: /Users/xyz/Music/Ableton/Projects/2024-04_018 Project

OM Workspace: /Users/xyz/Music/Ableton/Projects/2024-04_018 Project/2024-04_018

 

I can output the latest score as midi inside my workspace folder.

 

(compile-score *last-score* 
               :output :midi :file "/Users/xyz/Music/Ableton/Projects/2024-04_018 Project/2024-04_018/v.mid"
               :if-exists :new-index)

 

This works fine, but I rather would like to be more flexible by using a folder path representation to current OM workspace.

How can I store the midi, without referring to my local folder path explicitly?

What's the correct form in the folder path, which always refers to OM workspace ?

 

I tried ~/ , but this seems not a proper symbolic folder path representation to workspace.

Thanks for help.

 

[Tension level according to Hindemith Chord Classification]

Dear @Stephane Boussuge: thank you.

[Tension level according to Hindemith Chord Classification]

 Is there a function in OM which implements a tension level classification according to Hindemith chord classification method?

 

Hindemith

WWW.UX1.EIU.EDU

 

Example:

Sort the following chords according to their tension class:

 

(chordize (pcs-sub-sets '(2 3 4) (pcs '7-35) :pitch))

 

[Infer scale from get-harmonic-path result]

I am looking for a function in OM to get for a get-harmonic-path result a list with probabilities say top 5 estimates which scale & root fits (# of notes in scale / # all notes) best the input?

 

I guess all elements are available in OM, I just cant program it.

[VSL - Vienna Symphonic Library Synchron Prime Edition]

Does anybody have a fully supported instrument/sound set for Prime ready for sharing?

[Coming soon: 5 Opusmodus lessons on Composer workshop]

I like it, those composing approaches are very instructive.

[Auto Harmonizer Function]

Thanks Stephane, the possibilities with OM seems infinite, and it shows me I need to study the documentation even more