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AM last won the day on December 2 2017

AM had the most liked content!


About AM

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    https://soundcloud.com/andr-meier-1 http://www.andremeier.org

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  1. Quantisation?

    great! merry christmas
  2. Length-Legato opposite function

    it was necessary to re-organize "OMN with ties" by "omn-merge-ties" first... and find a solution if staccato-length = length ... added 2 minutes later you're welcome... it's a bit like "BRAINFOOD" solving such things... but TORSTEN is the "code-master" for the complicated things!! :-) so, i have to compose now, the real hard work
  3. Length-Legato opposite function

    the solution... (defun length-staccato (n alist) (let ((newlengths) (new-omn (omn-merge-ties (flatten alist))) (time-sign (get-time-signature alist))) (progn (setf newlengths (loop for i in (omn :length new-omn) when (> i 0) append (if (= n i) (list i) (list n (* -1 (abs (- i n))))) else collect i)) (if (omn-formp alist) (omn-to-time-signature (make-omn :length newlengths :pitch (omn :pitch new-omn) :velocity (omn :velocity new-omn) :articulation (omn :articulation new-omn)) time-sign) newlengths)))) (length-staccato 1/16 '(q -q q q)) (length-staccato 1/16 '(q e4 mp q tasto q -q q q)) (length-staccato 1/16 '((e. c4 eb4 fs4 a4 tie) (s a4 e. cs4 e4 g4 e bb4 tie) (e bb4 e. d4 f4 gs4 s b4)))
  4. Length-Legato opposite function

    dear julio i don't know if there is a solution in the om-library... coded quickly one for your problem... the basic-rhythms (denominator) should stay constant like in your examples, then it works... first value has to be your "stacc-length", second your omn-list or a length-list, have a look to the example... greetings andré (defun length-staccato (n alist) (let ((newlengths (loop for i in (omn :length alist) when (> i 0) append (list n (* -1 (abs (- i n)))) else collect i))) (if (omn-formp alist) (make-omn :length newlengths :pitch (omn :pitch alist) :velocity (omn :velocity alist) :articulation (omn :articulation alist)) newlengths))) (length-staccato 1/16 '(q e4 mp q tasto q -q q q))
  5. polytempo-discussion in OM (years ago) https://opusmodus.com/forums/topic/353-how-to-write-a-polytempo-score/?tab=comments#comment-910 --- technology for live realisation (how to conduct it) by real musicians -> by polytempo-network: https://www.facebook.com/Philippe-Kocher-Composer-31442199213/ http://philippekocher.ch/#109 http://polytempo.zhdk.ch i used this technology already for 2 pieces... also for my next work. greetings andré
  6. Midi In Collect

    to wishlist: xml-import
  7. tutorial guide

    thanks, janusz, for this great TUTORIAL GUIDE! https://opusmodus.com/forums/tutorials/tutorial-guide/
  8. i didn't find a OM-library-solution for this kind of thing, so i coded it... if you want to REPLACE the articulation of some specific pitches. perhaps all 'd4 sould be PONTE... you could use this. it was necessary to code it like that, because otherwise you get in trouble with the empty parameter-slots... should work fine greetings andré ;;; SUBFUNCTIONS (defun eliminate-nil (alist) (loop for i in alist when (not (null i)) collect i)) (defun complete-event-slots (omn-list) (let ((omn-art (omn :articulation (single-events (flatten omn-list))))) (single-events (omn-replace :articulation (flatten (eliminate-nil (loop for i in omn-art for cnt = 0 then (incf cnt) when (equal (car i) '-) collect (nth (1- cnt) omn-art) else collect i))) omn-list)))) ;(complete-event-slots '(5q a4 ff pizz 5q e3 -e 5q a4 f)) ;;; MAIN FUNCTION (defun replace-articulation-of-a-pitch (omn-list &key pitches articulation (chance 1.0)) (loop for i in (complete-event-slots (flatten omn-list)) when (and (member (car (omn :pitch i)) pitches) (prob? chance)) append (omn-component-replace i (list articulation)) else append i)) ;;; EXAMPLE (replace-articulation-of-a-pitch '(5q a4 ff pizz 5q e3 p -q 5q d4 pizz) :pitches '(a4 d4) :articulation 'ponte :chance 1.0) -> (5q a4 ff ponte 5q e3 p pizz -q 5q d4 p ponte)
  9. okay, but the "evaluation"-process (perhaps transpose note 2 octaves down and add pitch in a disctance of a fourth) must/could be done in LISP!?
  10. hi all does anybody already coded a FUNCTION to replace string-pitches by natural or artificial harmonics? is the specific notehead in OM (for the artificials)? would/could be very practical... perhaps if you have fast phrases in a large ambitus... the function - if it would be very well coded - could search for the nearest/closest fingering... greetings andré
  11. yes, i know - i love to code a lot of things myself, and at the moment i'm not very virtuous in it. but I have found a solution - without rebuilding my big programs. with (pprint-last-score) i can read and save the OMN, after evaluating and exporting xml/midi. so you were right, janusz, the solution was in the SYSTEM FUNCTIONS thanx for help - torsten, stéphane & janusz
  12. thank you, torsten - the problem is, that i'm working with my own random/pick-functions which don't work with SEED - so, that's my fault/problem
  13. hi all is there a possibility to SAVE my output - the OMN-lists - (rnd-generated structures) in a seperate file? that by EVALUATION the OMN-lists will be written in a sepeart/new-generated file? ...so that i have not to re-import it via MIDI (makes a lot of strange rhythms) thanks for help andré
  14. Midi In Collect

    very interested in version 2.0 - features/release?
  15. Midi In Collect

    like this?