Stephane Boussuge

In memoriam Narcis Bonet who was one of my teachers. Opusmodus score attached. SB. PlutonV1-02.opmo

Hi Julio that score use the pcs 7-33 as pitch material. It use also a vector mapping on "reservoirs" of motives for the music generation. All this was done on the fly on a draft file. Once done, i've used pprint for pprint the score on my finale opmo score file and add some few treatment for creating the coda. Score attached to this post. All the best S. prelpia171218.opmo

Here's a small Prelude for Piano. SB.

You can use pitch-class within PATTERN-MAP function: (pattern-map '(((0 1 9 4 2 5) (0 4 2 1 9 5)) ((11 8 10 3 7 6) (10 8 11 3 7 6))) '((c6 cs4 a4 e3 d6 f4) (b4 gs3 bb4 eb4 g5 fs6)) :pcs t) => ((c6 e4 d4 cs3 a6 f4) (bb4 gs3 b4 eb4 g5 fs6))

You can use pitch-class within pattern-map function: (pattern-map '(((0 1 9 4 2 5) (0 4 2 1 9 5)) ((11 8 10 3 7 6) (10 8 11 3 7 6))) '((c6 cs4 a4 e3 d6 f4) (b4 gs3 bb4 eb4 g5 fs6)) :pcs t) => ((c6 e4 d4 cs3 a6 f4) (bb4 gs3 b4 eb4 g5 fs6))

May be Expansion-series functions pitch-repeat-transpose (re-incarnation trim with gen-trim length-diminution or augmentation fragmentation with pitch-fragment gen-transition or gen-morph etc.. use weighted function to add more and more rest in music (length-weight) use text-to-pitch functions to create pitch structures based on the Death word or a death poem create vectors who go from top to bottom (or reverse) and use them for rhythm, pitch etc... (gen-tendency) the possibilities are endless SB.

originally, i've made gen-chord3 with JP for using in this top to bottom approach. what is called root in gen-chord3 parameters was not thinked by me originaly as "root" but more cantus note on with to add other notes (below or not). S. But naturally, the gen-chord3 function is not conditionnal, so we have to think about something else but i think you can do that with pattern-match function. S. or also with def-case.

(gen-retrograde durations1 :omn t) => ((t s t) (t 13/96 3q) (5h = 3/35 7q = = = = 3/35 5h =) (3q 13/96 t) (t s t)) S.

For span-ignore-pause, use the function gen-swallow SB.

You may use text attributes. S.

EDIT: Sligthly improved version with chord-interval-replace for finalising the final score assembly: ;;; UTILITIES ;;; ======================================== ;;; GEN-PITCH-LINE ;;; Fonction de génération de hauteurs basées sur une conversion de vecteur de bruit ;;; avec un grand choix de type de bruit, taux de compression du vecteur, filtrage des répétitions et ambitus. (defun gen-pitch-line (nb-pitch &key (compress 1) (ambitus '(c4 c6)) seed filter-repeat (type :white)) (setf seed (rnd-seed seed)) (let (pitches) (do-verbose ("gen-pitch-line :seed ~s" seed) (labels ((white-or-pink (nb-pitch seed type) (if (eq type ':pink) (gen-pink-noise nb-pitch :seed seed) (gen-white-noise nb-pitch :seed seed :type (if (eq type ':white) :normal type)))) (process (nb-pitch &key (compress 1) (ambitus '(c4 c6)) seed filter-repeat type) (setf pitches (vector-to-pitch ambitus (vector-smooth compress (white-or-pink nb-pitch seed type)))) (when filter-repeat (setf pitches (gen-trim nb-pitch (filter-repeat filter-repeat pitches)))) pitches) ) (process nb-pitch :compress compress :ambitus ambitus :filter-repeat filter-repeat :seed (seed) :type type))))) #| USAGE (gen-pitch-line 24 :compress 0.42 :type :white :filter-repeat 1) (gen-pitch-line 24 :compress 0.42 :type :pink :filter-repeat 1) (gen-pitch-line 24 :compress 0.42 :type :extreme :filter-repeat 1) (gen-eval 8 '(make-omn :pitch (gen-pitch-line 24 :compress 0.42 :type :white :filter-repeat 1) :length (euclidean-rhythm 16 1 16 's :type 2) ) :seed 33) |# ;;; OMN-ARTICULATION-PROCESSOR (defun omn-articulation-processor (map omn-mat &key (section nil)) (do-verbose ("omn-articulation-processor") (let ((artic (pattern-map map (omn :length omn-mat) :otherwise '(default) :section section)) ) (omn-replace :articulation artic omn-mat) ))) ;;; MAKE-CHORD-IF-LENGTH (defun make-chord-if-length-aux (omn &key (test #'>) (length-val 1/8) (interval-list '((4 7)(7 12))) (cycle t)(relative nil) seed) (setf seed (rnd-seed seed)) (let ((s-events (single-events omn))) (loop for e in s-events when (funcall test (omn-encode (first e)) length-val) append (omn-replace :pitch (gen-chord3 (list (second e)) interval-list :cycle cycle :relative relative :seed (seed)) e ) else append e))) (defun make-chord-if-length (omn &key (test #'>) (length-val 1/8) (interval-list '((4 7)(7 12)))(cycle nil)(relative nil) seed) (setf seed (rnd-seed seed)) (do-verbose ("make-chord-if-length :seed ~s :length-val ~s :interval-list ~s :cycle ~s :relative ~s" seed length-val interval-list cycle relative) (let ((test-fn (case test (> #'>) (< #'<) (= #'=) (otherwise test)))) (if (listp (car omn)) (mapcar #'(lambda (x) (make-chord-if-length-aux x :test test-fn :length-val (omn-encode length-val) :interval-list interval-list :cycle cycle :relative relative :seed (seed))) omn) (make-chord-if-length-aux omn :test test-fn :length-val (omn-encode length-val) :interval-list interval-list :cycle cycle :relative relative :seed (seed)))))) ;;; ======================================== ;;;--------------------------------------------------------- ;;; Parameters ;;;--------------------------------------------------------- (setf size 24) (setf flow1 (pitch-transpose -7 (make-omn :pitch (gen-pitch-line 128 :compress 0.33 :seed 729353) :length (rnd-sample size '((s s s s s s s s -q) (e e h)(h.)(q q e e) (e e q q)(s s s s q q) (q s s s s q)(s s e -e s s q) ) :seed 729355) :velocity (rnd-sample size '((ppp)(pp)(p)(mp)(mf)) :seed 729356) ))) (setf flow2 (pitch-transpose -4 (make-omn :pitch (gen-pitch-line 128 :compress 0.73 :seed 353) :length (rnd-sample size '((h. ) (q. e q)(h.)(q q q) (h -q)(e e h) (h e e) ) :seed 729355) :velocity (rnd-sample size '((ppp)(pp)(p)) :seed 729356) ))) (setf flow3 (pitch-transpose -7 (make-omn :pitch (gen-pitch-line 128 :compress 0.33 :seed 7353) :length (rnd-sample size '((s s s s s s s s -q) (e e h)(h.)(q q e e) (e e q q)(s s s s q q) (q s s s s q)(s s e -e s s q) ) :seed 7255) :velocity (rnd-sample size '((ppp)(pp)(p)(mp)(mf)) :seed 7256) ))) ;;; Articulation remap (setf map '(((1/16 1/16 1/16 1/16)(leg leg leg default)))) (setf with-ch1 (omn-articulation-processor map (pitch-ornament (make-chord-if-length flow1 :interval-list '((-7 -19 3 9)(-4 -16 3 7) (-5 -17 4 12)(-3 -15 7)) :cycle nil :relative t :seed 729358 )))) (setf with-ch2 (omn-articulation-processor map (pitch-ornament (make-chord-if-length flow2 :interval-list '((-7 -19 3 9)(-4 -16 3 7) (-5 -17 4 12)(-3 -15 7)) :cycle nil :relative t :seed 729358 )))) (setf with-ch3 (omn-articulation-processor map (pitch-ornament (make-chord-if-length flow3 :interval-list '((-7 -19 3 9)(-4 -16 3 7) (-5 -17 4 12)(-3 -15 7)) :cycle nil :relative t :seed 729358 )))) ;;; SCORE ASSEMBLY (setf piano-rh (chord-interval-replace '(0 1 2) '(4 3 4) (omn-replace :articulation '(default leg leg leg default fermata-l) (ambitus-filter '(c4 c8) (assemble-seq with-ch1 with-ch2 with-ch3)) :section '(71)))) (setf piano-lh (chord-interval-replace '(0 1 2) '(4 3 4) (omn-replace :articulation '(default fermata-l) (ambitus-filter '(c0 b3) (assemble-seq with-ch1 with-ch2 with-ch3)) :section '(71)))) ;;;--------------------------------------------------------- ;;; Score and Layout ;;;--------------------------------------------------------- (def-score Study (:title "Mcil-study" :composer "S.Boussuge" :copyright "Copyright © 2018 s.boussuge " :key-signature 'chromatic :time-signature '((1 1 1) 4) :tempo 82 :layout (piano-solo-layout 'piano-rh 'piano-lh)) (piano-rh :omn piano-rh :channel 1 :sound 'gm :program 'acoustic-grand-piano :volume 100 :pan 64 :controllers (91 '(48)) ) (piano-lh :omn piano-lh :channel 2 :controllers (91 '(48)) ) ) SB.

Thanks Iviklund. indeed, default articulation is included in my setup from a long time and i forget to put it back here. have a nice day SB

Here's a small piano study using my new function make-chord-if-length and few others from my personal lib. Enjoy SB. ;;; UTILITIES ;;; ======================================== ;;; GEN-PITCH-LINE ;;; Fonction de génération de hauteurs basées sur une conversion de vecteur de bruit ;;; avec un grand choix de type de bruit, taux de compression du vecteur, filtrage des répétitions et ambitus. (defun gen-pitch-line (nb-pitch &key (compress 1) (ambitus '(c4 c6)) seed filter-repeat (type :white)) (setf seed (rnd-seed seed)) (let (pitches) (do-verbose ("gen-pitch-line :seed ~s" seed) (labels ((white-or-pink (nb-pitch seed type) (if (eq type ':pink) (gen-pink-noise nb-pitch :seed seed) (gen-white-noise nb-pitch :seed seed :type (if (eq type ':white) :normal type)))) (process (nb-pitch &key (compress 1) (ambitus '(c4 c6)) seed filter-repeat type) (setf pitches (vector-to-pitch ambitus (vector-smooth compress (white-or-pink nb-pitch seed type)))) (when filter-repeat (setf pitches (gen-trim nb-pitch (filter-repeat filter-repeat pitches)))) pitches) ) (process nb-pitch :compress compress :ambitus ambitus :filter-repeat filter-repeat :seed (seed) :type type))))) #| USAGE (gen-pitch-line 24 :compress 0.42 :type :white :filter-repeat 1) (gen-pitch-line 24 :compress 0.42 :type :pink :filter-repeat 1) (gen-pitch-line 24 :compress 0.42 :type :extreme :filter-repeat 1) (gen-eval 8 '(make-omn :pitch (gen-pitch-line 24 :compress 0.42 :type :white :filter-repeat 1) :length (euclidean-rhythm 16 1 16 's :type 2) ) :seed 33) |# ;;; OMN-ARTICULATION-PROCESSOR (defun omn-articulation-processor (map omn-mat &key (section nil)) (do-verbose ("omn-articulation-processor") (let ((artic (pattern-map map (omn :length omn-mat) :otherwise '(default) :section section)) ) (omn-replace :articulation artic omn-mat) ))) ;;; MAKE-CHORD-IF-LENGTH (defun make-chord-if-length-aux (omn &key (test #'>) (length-val 1/8) (interval-list '((4 7)(7 12))) (cycle t)(relative nil) seed) (setf seed (rnd-seed seed)) (let ((s-events (single-events omn))) (loop for e in s-events when (funcall test (omn-encode (first e)) length-val) append (omn-replace :pitch (gen-chord3 (list (second e)) interval-list :cycle cycle :relative relative :seed (seed)) e ) else append e))) (defun make-chord-if-length (omn &key (test #'>) (length-val 1/8) (interval-list '((4 7)(7 12)))(cycle nil)(relative nil) seed) (setf seed (rnd-seed seed)) (do-verbose ("make-chord-if-length :seed ~s :length-val ~s :interval-list ~s :cycle ~s :relative ~s" seed length-val interval-list cycle relative) (let ((test-fn (case test (> #'>) (< #'<) (= #'=) (otherwise test)))) (if (listp (car omn)) (mapcar #'(lambda (x) (make-chord-if-length-aux x :test test-fn :length-val (omn-encode length-val) :interval-list interval-list :cycle cycle :relative relative :seed (seed))) omn) (make-chord-if-length-aux omn :test test-fn :length-val (omn-encode length-val) :interval-list interval-list :cycle cycle :relative relative :seed (seed)))))) ;;; ======================================== ;;;--------------------------------------------------------- ;;; Parameters ;;;--------------------------------------------------------- (setf size 24) (setf flow1 (pitch-transpose -7 (make-omn :pitch (gen-pitch-line 128 :compress 0.33 :seed 729353) :length (rnd-sample size '((s s s s s s s s -q) (e e h)(h.)(q q e e) (e e q q)(s s s s q q) (q s s s s q)(s s e -e s s q) ) :seed 729355) :velocity (rnd-sample size '((ppp)(pp)(p)(mp)(mf)) :seed 729356) ))) (setf flow2 (pitch-transpose -4 (make-omn :pitch (gen-pitch-line 128 :compress 0.73 :seed 353) :length (rnd-sample size '((h. ) (q. e q)(h.)(q q q) (h -q)(e e h) (h e e) ) :seed 729355) :velocity (rnd-sample size '((ppp)(pp)(p)) :seed 729356) ))) (setf flow3 (pitch-transpose -7 (make-omn :pitch (gen-pitch-line 128 :compress 0.33 :seed 7353) :length (rnd-sample size '((s s s s s s s s -q) (e e h)(h.)(q q e e) (e e q q)(s s s s q q) (q s s s s q)(s s e -e s s q) ) :seed 7255) :velocity (rnd-sample size '((ppp)(pp)(p)(mp)(mf)) :seed 7256) ))) ;;; Articulation remap (setf map '(((1/16 1/16 1/16 1/16)(leg leg leg default)))) (setf with-ch1 (omn-articulation-processor map (pitch-ornament (make-chord-if-length flow1 :interval-list '((-7 -19 3 9)(-4 -16 3 7) (-5 -17 4 12)(-3 -15 7)) :cycle nil :relative t :seed 729358 )))) (setf with-ch2 (omn-articulation-processor map (pitch-ornament (make-chord-if-length flow2 :interval-list '((-7 -19 3 9)(-4 -16 3 7) (-5 -17 4 12)(-3 -15 7)) :cycle nil :relative t :seed 729358 )))) (setf with-ch3 (omn-articulation-processor map (pitch-ornament (make-chord-if-length flow3 :interval-list '((-7 -19 3 9)(-4 -16 3 7) (-5 -17 4 12)(-3 -15 7)) :cycle nil :relative t :seed 729358 )))) ;;; SCORE ASSEMBLY (setf piano-rh (omn-replace :articulation '(default leg leg leg default fermata-l) (ambitus-filter '(c4 c8) (assemble-seq with-ch1 with-ch2 with-ch3)) :section '(71))) (setf piano-lh (omn-replace :articulation '(default fermata-l) (ambitus-filter '(c0 b3) (assemble-seq with-ch1 with-ch2 with-ch3)) :section '(71))) ;;;--------------------------------------------------------- ;;; Score and Layout ;;;--------------------------------------------------------- (def-score Study (:title "Mcil-study" :composer "S.Boussuge" :copyright "Copyright © 2018 s.boussuge " :key-signature 'chromatic :time-signature '((1 1 1) 4) :tempo 82 :layout (piano-solo-layout 'piano-rh 'piano-lh)) (piano-rh :omn piano-rh :channel 1 :sound 'gm :program 'acoustic-grand-piano :volume 100 :pan 64 :controllers (91 '(48)) ) (piano-lh :omn piano-lh :channel 2 :controllers (91 '(48)) ) )

Sorry, there was a mistake in this first version. here's the correct one. Apologize. SB. ;;; ============================================== ;;; UTILITY FUNCTIONS ;;; (defun make-chord-if-length-aux (omn &key (test #'>) (length-val 1/8) (interval-list '((4 7)(7 12))) (cycle t)(relative nil) seed) (setf seed (rnd-seed seed)) (let ((s-events (single-events omn))) (loop for e in s-events when (funcall test (omn-encode (first e)) length-val) append (omn-replace :pitch (gen-chord3 (list (second e)) interval-list :cycle cycle :relative relative :seed (seed)) e ) else append e))) ;(make-chord-if-length-aux '(q c4 d4 e4 f4 e g4 a4)) ;(make-chord-if-length-aux '(q c4 d4 e4 f4 e g4 a4) :interval-list '((4 7)(3 10))) ;(make-chord-if-length-aux '(q c4 d4 e4 f4 e g4 a4) :interval-list '((4 7 11 14)(7 9 16)) :cycle nil) ;(make-chord-if-length-aux '(q c4 d4 e4 f4 e g4 a4) :interval-list '((-17 -12 4 7)(-12 -7 5 10)) :cycle t) ;(make-chord-if-length-aux '(q c4 d4 e4 f4 e g4 a4) :interval-list '((4 7 11 14)(7 9 16)) :cycle nil :seed 4) ;(make-chord-if-length-aux '(q c4 d4 e4 f4 e g4 a4) :interval-list '((4 7 11 14)(7 9 16)) :cycle nil :relative t) ;(make-chord-if-length-aux '(q c4 d4 e4 f4 e g4 a4) :interval-list '((4 7 11 14)(7 9 16)) :cycle nil :relative t :seed 4) ;;; ============================= ;;; MAIN FUNCTION (defun make-chord-if-length (omn &key (test #'>) (length-val 1/8) (interval-list '((4 7)(7 12)))(cycle nil)(relative nil) seed) (setf seed (rnd-seed seed)) (do-verbose ("make-chord-if-length :seed ~s :length-val ~s :interval-list ~s :cycle ~s :relative ~s" seed length-val interval-list cycle relative) (let ((test-fn (case test (> #'>) (< #'<) (= #'=) (otherwise test)))) (if (listp (car omn)) (mapcar #'(lambda (x) (make-chord-if-length-aux x :test test-fn :length-val (omn-encode length-val) :interval-list interval-list :cycle cycle :relative relative :seed (seed))) omn) (make-chord-if-length-aux omn :test test-fn :length-val (omn-encode length-val) :interval-list interval-list :cycle cycle :relative relative :seed (seed)))))) ;;; Tests ;(make-chord-if-length '((q c4 e d4 e4 f4 h d4)(s a4 b4 a4 g4 h f4)(q c4 d4 h e4))) ;(make-chord-if-length '((q c4 e d4 e4 f4 h d4)(s a4 b4 a4 g4 h f4)(q c4 d4 h e4)) :seed 8) ;(make-chord-if-length '((q c4 e d4 e4 f4 h d4)(s a4 b4 a4 g4 h f4)(q c4 d4 h e4)) :interval-list '((2 9)(7 11))) ;(make-chord-if-length '((q c4 d4 e4 f4 g4)(s a4 b4 a4 g4 h f4)(q c4 d4 h e4)) :cycle t) ;(make-chord-if-length '((q c4 e d4 e4 f4 h d4)(s a4 b4 a4 g4 h f4)(q c4 d4 h e4)) :cycle nil :relative t) ;(make-chord-if-length '((q c4 e d4 e4 f4 h d4)(s a4 b4 a4 g4 h f4)(q c4 d4 h e4)) :cycle nil :relative t :seed 8) make-chord-if-length.lisp

But indeed, i see, it is more about chord processing... Thanks for this. All the best SB.

But also you need to use the :cycle t keyword. It allo you to cycle between the chords definition, because if :cycle nil (default) chords are chosen randomly. SB.

Now, finally it's done by myself. . SB

i did a "default" articulation with no display in my opmo user attributes file. (add-program-attributes '(default) ) SB.

Here's a new function a bit similar to my old "add-interval-if-length" function but bit more sophisticated. It use gen-chord3 to create chord on defined length. ;;; ============================================== ;;; UTILITY FUNCTIONS ;;; (defun make-chord-if-length-aux (omn &key (test #'>) (length-val 1/8) (interval-list '((4 7)(7 12))) (cycle t)(relative nil) seed) (setf seed (rnd-seed seed)) (let ((s-events (single-events omn))) (loop for e in s-events for i in (gen-trim (length s-events) interval-list) when (funcall test (omn-encode (first e)) length-val) append (omn-replace :pitch (gen-chord3 (list (second e)) i :cycle cycle :relative relative :seed (seed)) e ) else append e))) ;(make-chord-if-length-aux '(q c4 d4 e4 f4 e g4 a4)) ;(make-chord-if-length-aux '(q c4 d4 e4 f4 e g4 a4) :interval-list '((4 7)(3 10))) ;(make-chord-if-length-aux '(q c4 d4 e4 f4 e g4 a4) :interval-list '((4 7 11 14)(7 9 16)) :cycle nil) ;(make-chord-if-length-aux '(q c4 d4 e4 f4 e g4 a4) :interval-list '((4 7 11 14)(7 9 16)) :cycle nil :seed 4) ;(make-chord-if-length-aux '(q c4 d4 e4 f4 e g4 a4) :interval-list '((4 7 11 14)(7 9 16)) :cycle nil :relative t) ;(make-chord-if-length-aux '(q c4 d4 e4 f4 e g4 a4) :interval-list '((4 7 11 14)(7 9 16)) :cycle nil :relative t :seed 4) ;;; ============================= ;;; MAIN FUNCTION (defun make-chord-if-length (omn &key (test #'>) (length-val 1/8) (interval-list '((4 7)(7 12)))(cycle nil)(relative nil) seed) (setf seed (rnd-seed seed)) (do-verbose ("make-chord-if-length :seed ~s :length-val ~s :interval-list ~s :cycle ~s :relative ~s" seed length-val interval-list cycle relative) (let ((test-fn (case test (> #'>) (< #'<) (= #'=) (otherwise test)))) (if (listp (car omn)) (mapcar #'(lambda (x) (make-chord-if-length-aux x :test test-fn :length-val (omn-encode length-val) :interval-list interval-list :cycle cycle :relative relative :seed (seed))) omn) (make-chord-if-length-aux omn :test test-fn :length-val (omn-encode length-val) :interval-list interval-list :cycle cycle :relative relative :seed (seed)))))) ;;; Tests ;(make-chord-if-length '((q c4 e d4 e4 f4 h d4)(s a4 b4 a4 g4 h f4)(q c4 d4 h e4))) ;(make-chord-if-length '((q c4 e d4 e4 f4 h d4)(s a4 b4 a4 g4 h f4)(q c4 d4 h e4)) :seed 8) ;(make-chord-if-length '((q c4 e d4 e4 f4 h d4)(s a4 b4 a4 g4 h f4)(q c4 d4 h e4)) :interval-list '((2 9)(7 11))) ;(make-chord-if-length '((q c4 d4 e4 f4 g4)(s a4 b4 a4 g4 h f4)(q c4 d4 h e4)) :cycle t) ;(make-chord-if-length '((q c4 e d4 e4 f4 h d4)(s a4 b4 a4 g4 h f4)(q c4 d4 h e4)) :cycle nil :relative t) ;(make-chord-if-length '((q c4 e d4 e4 f4 h d4)(s a4 b4 a4 g4 h f4)(q c4 d4 h e4)) :cycle nil :relative t :seed 8) i've also attached the original file to this post. SB. make-chord-if-length.lisp

I think you can use gen-chord3. also i have finished the function you asked in another post about a different version of add-interval-if-length. This one is make-chord-if-length and is based on gen-chord3. i'll post it here for convenience but will also post it in programming forums section. ;;; ============================================== ;;; UTILITY FUNCTIONS ;;; (defun make-chord-if-length-aux (omn &key (test #'>) (length-val 1/8) (interval-list '((4 7)(7 12))) (cycle t)(relative nil) seed) (setf seed (rnd-seed seed)) (let ((s-events (single-events omn))) (loop for e in s-events for i in (gen-trim (length s-events) interval-list) when (funcall test (omn-encode (first e)) length-val) append (omn-replace :pitch (gen-chord3 (list (second e)) i :cycle cycle :relative relative :seed (seed)) e ) else append e))) ;(make-chord-if-length-aux '(q c4 d4 e4 f4 e g4 a4)) ;(make-chord-if-length-aux '(q c4 d4 e4 f4 e g4 a4) :interval-list '((4 7)(3 10))) ;(make-chord-if-length-aux '(q c4 d4 e4 f4 e g4 a4) :interval-list '((4 7 11 14)(7 9 16)) :cycle nil) ;(make-chord-if-length-aux '(q c4 d4 e4 f4 e g4 a4) :interval-list '((4 7 11 14)(7 9 16)) :cycle nil :seed 4) ;(make-chord-if-length-aux '(q c4 d4 e4 f4 e g4 a4) :interval-list '((4 7 11 14)(7 9 16)) :cycle nil :relative t) ;(make-chord-if-length-aux '(q c4 d4 e4 f4 e g4 a4) :interval-list '((4 7 11 14)(7 9 16)) :cycle nil :relative t :seed 4) ;;; ============================= ;;; MAIN FUNCTION (defun make-chord-if-length (omn &key (test #'>) (length-val 1/8) (interval-list '((4 7)(7 12)))(cycle nil)(relative nil) seed) (setf seed (rnd-seed seed)) (do-verbose ("make-chord-if-length :seed ~s :length-val ~s :interval-list ~s :cycle ~s :relative ~s" seed length-val interval-list cycle relative) (let ((test-fn (case test (> #'>) (< #'<) (= #'=) (otherwise test)))) (if (listp (car omn)) (mapcar #'(lambda (x) (make-chord-if-length-aux x :test test-fn :length-val (omn-encode length-val) :interval-list interval-list :cycle cycle :relative relative :seed (seed))) omn) (make-chord-if-length-aux omn :test test-fn :length-val (omn-encode length-val) :interval-list interval-list :cycle cycle :relative relative :seed (seed)))))) ;;; Tests ;(make-chord-if-length '((q c4 e d4 e4 f4 h d4)(s a4 b4 a4 g4 h f4)(q c4 d4 h e4))) ;(make-chord-if-length '((q c4 e d4 e4 f4 h d4)(s a4 b4 a4 g4 h f4)(q c4 d4 h e4)) :seed 8) ;(make-chord-if-length '((q c4 e d4 e4 f4 h d4)(s a4 b4 a4 g4 h f4)(q c4 d4 h e4)) :interval-list '((2 9)(7 11))) ;(make-chord-if-length '((q c4 d4 e4 f4 g4)(s a4 b4 a4 g4 h f4)(q c4 d4 h e4)) :cycle t) ;(make-chord-if-length '((q c4 e d4 e4 f4 h d4)(s a4 b4 a4 g4 h f4)(q c4 d4 h e4)) :cycle nil :relative t) ;(make-chord-if-length '((q c4 e d4 e4 f4 h d4)(s a4 b4 a4 g4 h f4)(q c4 d4 h e4)) :cycle nil :relative t :seed 8) SB.

Thank you for the information André. All the best Stéphane

I own the 2 library and for me ConTimbre is indeed much better (much complete) than IRCAM instruments lib. SB.

Hi Julio, it could be possible but a bit outside my programming capabilities, but Janusz is certainly capable to achieve this. And , as you, i would love this feature S.

You can also use the Opusmodus function length-map for doing that. SB.

SB.