Jump to content

Opusmodus 1.4 - Microtonality

Recommended Posts

  • opmo featured this topic

Hi Janusz,

Very Great. This is excellent, combined with the ability to correct all frequencies with cents adjustments (:articul from 1c to 99c) very useful for simulating frequency modulation (FM) or ring modulation with virtual instruments, Opusmodus will become the most powerful editor for writing and hearing microtonal compositions.

A big thank you Janusz.

Link to post
Share on other sites

Thanks a lot for working on this.


Just to confirm: is the pitch resolution of the actual pitch parameter limited to expressing quarter and eighth tones and for other subdivisions articulations are used? 


The main/only advantage of 24-ET (equal temperament) and 48-ET is that they contain all 12 tones from 12-ET in the same  "grey" approximation of just intervals (i.e. intervals that can relatively easily tuned by ear -- much more easily than anyhow tempered intervals) than 12-ET. They only add 11-limit intervals like 11/8 rather well (nicely used for that, e.g., by Wyschnegradsky). From a harmonic point of view, various other equal subdivisions of the octave are much more interesting, because they either approximate more novel just intervals or/and approximate standard intervals better (e.g., more just thirds). For example, 19-ET and  22-ET have less tones than 24-ET, but are harmonically more interesting in this regard (e.g., https://en.wikipedia.org/wiki/22_equal_temperament) and so is 31-ET (extended meantone with septimal intervals, https://en.wikipedia.org/wiki/31_equal_temperament) or 41-ET.  


For a good compromise between a tuning that would include 12-ET and additionally is harmonically interesting I would instead propose 72-ET (https://en.wikipedia.org/wiki/72_equal_temperament). This temperament is already relatively widely used by multiple independent communities because of that, and there already exist ASCII notations for this temperament (besides various other notations – their number is just a testament to how useful this temperament has been for many), examples copied below (e.g., see http://tonalsoft.com/enc/number/72edo.aspx).


Tuning list standard, based on Sims/Maneri 72edo notation

lower raise   inflection    cents

  b    #       semitone     100
  ]    [       1/4-tone      50
  <    >       1/6-tone      331/3
  v    ^       1/12-tone     162/3
Monzo 72-edo HEWM notation

lower raise   inflection    cents

  b    #       semitone     100
  v    ^       1/4-tone      50
  <    >       1/6-tone      331/3
  -    +       1/12-tone     162/3


Just my 2 Euro cent...





Link to post
Share on other sites
  • 1 month later...
  • 1 month later...

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Similar Topics

    • By opmo
      – Fixed:
      Prevent articulation on all but the first note of a tie.
      FIT-TO-SPAN with :extend 's option, stops flatten result.
    • By opmo
      – Additions:
      :index in POLYPHONY function.
      – Fixed:
      missing list in the first voice in POLYPHONY function return.
    • By Richardbartlett
      > Error: The function double is predefined by Opusmodus.
      > While executing: ccl::cerror-if-redefine-om, in process Opusmodus Extension Initialization(5).
      > Type cmd-/ to continue, cmd-. to abort, cmd-\ for a list of available restarts.
      > If continued: Replace the definition of double.
      > Type :? for other options.
      1 > 
  • Create New...