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Session 23 - 14.11.20

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Here's the video files from this session.

The score files are already inside Opusmodus in score examples documentation section in Utility panel.

This is the scores : Craft for alto and piano. and the score Duet for violin and piano.


All the best to all of the Opusmodus community !





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  • opmo changed the title to Session 23 - 14.11.20
  • 2 weeks later...

Thanks so much, Stephane. It's been fantastic watching your sessions and learning more about Opusmodus. I have a quick question about the first part of your presentation, namely about the piece Craft.


Whenever I evaluate setf mel, I get every so slightly different melody. I even adjusted the setf path function by including the new '(octave) variable:

(setf path (tonality-series modes :map '(octave) :root roots)) 


Although, after watching your explanation in the video, I'm not sure if using 'octave affects the output or not.


I attached the screenshots of three separate compilations; each produces an almost exact melody with only a few different notes. Is that because of the built-in randomness, in tonality-series or tonality-map?


I understand that there's a way always to get the same output by using :seed. Would you happen to have any suggestions on how to implement it in the given context, especially when the init-seed is already used?


Many thanks!





Screen Shot 2020-11-27 at 4.32.03 PM.png

Screen Shot 2020-11-27 at 4.32.43 PM.png

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