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JulioHerrlein

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About JulioHerrlein

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  1. My conference about Rhythmic Set Theory. Best ! Julio Herrlein´s conference at the III International Congress of the Brazilian Association of Musical Theory and Analisys (TeMA) and the IV International Congress of Music and Mathematics. This Congress was University of Rio de Janeiro (UFRJ), hosted by Prof. Dr. Carlos Almada, Prof. Dr. Pauxy Gentil-Nunes and Prof. Dr. Liduíno Liduino Pitombeira, among many other people. It was a great honor to be in this amazing meeting with great musicians and having the oportunity to talk about my doctoral dissertation research, in many topics related to rhythm and popular music. My doctoral dissertation (in portuguese) can be downloaded in this link: http://hdl.handle.net/10183/179457 EXAMPLES: - ALL ROTATIONS OF THE BEMBÉ RHYTHM 12:59 - REGULATIVE TIME-POINT (ANKU) - EXPLANATION 15:33 e EXAMPLE 16:11 - LIGETI´S DIATONIC HARMONIC CLOUDS in Cordes à Vide (Piano Etude 2) 18:37 - DANCING AND NON-DANCING RHYTHMS 19:40 - BEMBÉ WITH ALTERNATIVE SUBDIVISIONS 21:32 - EXCERPT OF JACOB COLLIER INTERVIEW TO JUNE LEE 22:00 - BEMBÉ RHYTHM INSIDE A CYCLE OF SEPTUPLETS 23:20 - WAYNE KRANTZ "WHIPERSNAPPER" SOLO ANALISYS WITH RHYTHMIC SETS 24:09 I know that music theory is sometimes very hard to grasp, but it can really bring light about the nature of some music materials. If you are just curious, you can jump straight to the musical examples. These examples are very practical in its nature and the catalog of rhythms contained in the dissertation can be used in a very practical way, for composing and improvising. I hope it can be inspiring for you to make some music. All the best ! Enjoy !
  2. One more question: If I copy my new definitions to the Opusmodus/Def-Libraries/Def-Instrument-Sets folder will I loose the default gm definitions or can I still use the simple default gm internal synth instruments alongside with my personal system setup ? Or, saying it differently: will the def-instrument-sets folder overwrite the gm instrument set lisp file ? Just checking it before doing something wrong... Best ! Julio
  3. Thanks, Janusz Very nice ! I don't know where is the default file. Theses folders are empty. No default file to replace. Thank you ! Best, Julio
  4. Dear Janusz, 1) I just want to use a different port (other than internal) with the "ps" function to preview some scores. Is there an optional argument ":port " inside the "ps" function or do I have to create a def-instrument with the alternative port ? 2) In this case, what kind of archive do I have to put in this folder to make my def-instrument definition ? 3) Where in the expression of "ps" I must put the argument ":window" in order to have my snippet in a separate window ? Best, Julio
  5. Looks great ! Any release date and list of new features ? Best ! Julio
  6. Dear Janusz, It looks like the set is converted to its prime form internally before converted to the pc-rhythm set. So, the prime form of the set 7-35 (major scale, notes C D E F G A B) is (013568T) But in this case, the result would be: B C D E F G A wich is most "compact" way to express this set. So, there is an "hidden" function inside the pc-rhythm function. A function that converts the chords or notes into its more compact prime form. Yes, this looks very convenient from the programmer standpoint. I was expecting to convert literally the notes onto its time-point position, like in this diagram. Maybe a keyword or one more derived function for converting melodies to time-point in a cyclic way (in my way, not Babbit´s way) could be very convenient. It ocurred to me now. All the best, Julio
  7. Dear Torsten The function pitch-invert works as the tradional inversion, mirroing the intervals upside-down. Negative harmony is somewhat similar to inversion, but not exactly the same thing. Please, take a look in Levy book and in the video above, and you will see what I mean. I'm looking for something straightforward and non-academic, inside the 12-tone temperament, very simple, just to spice up the old progressions and voice-leading with a negative version. Thank you for the reply and references. Best, Julio
  8. Dear Janusz, I´m exploring this function recently and I get a problem: When evaluating this: (setf pcrhy '(c4d4e4f4g4a4a4)) (make-omn :length (pcs-rhythm pcrhy :omn t) :pitch (melodize pcrhy)) I´m getting this (right) result But, when evaluating this: (setf pcrhy '(c4d4e4f4g4a4a4b4)) (make-omn :length (pcs-rhythm pcrhy :omn t) :pitch (melodize pcrhy)) I´m getting this (wrong) result: I would expect to have this result What is wrong ? Best, Julio
  9. Dear Janusz, I was looking back to this textural method and I noticed that "chord-closest-path" function no longer exists. What the name of the new correspondent replacement function ? Best, Julio
  10. Yes, interesting. And importing MusicXML is also important and desirable.
  11. Dear All, One interesting thing that could be implemented as a function could be a form of generating Negative Harmony. In the video below, there are some explanation of what it is and the origin in the Levy book. It was a trendy topic due to the Jacob Collier interview. And there are a lot of fun videos making versions of pop tunes using negative harmony. The way I understand it, it is simply a kind of mapping notes in relation to an axis, like in the figure below. So we need a function that could map a note in any register to another note in the closest register to the first on. So, any C note will be mapped to G, all Db to F#, all D to F, all, Eb to E, all B to Ab, all Bb to A. It´s also possible to generate other mappings as well. I think that replace map or substitute map can do the job, but I´m not sure (I will try), but I find interesting to post it here to explore the idea. All the best, Julio It´s kind of funny to sse in this por versions how every is upside down and how you can generate an entirely new song from exactly the same material. POP TUNES with negative harmony:
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