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• By born
Is there a function like group-list in PWGL:

SYSTEM GROUP-LST   (LIST GROUP-LENS):
groups list into subsequnces, where group-lens indicates
the length of each sublist. group-lens can be a number or a list of numbers.
If list is not exhausted by group-lens, the last value of
group-lens will be used as a constant until list has been exhausted.

(group-lst lis '(1 2 3 4 5 6 7 8 9 10) '(2 3 5)) ; => ((1 2) (3 4 5) (6 7 8 9 10))
(group-lst lis '(1 2 3 4 5 6 7 8 9 10) '(2 3 4)) ; => ((1 2) (3 4 5) (6 7 8 9) (10))

• Hi,
An example of group orchestration.
I first create some binary représentation of some group of instruments and apply this groups with do-timeline:
;;; Parameters (setf size 12) ;;; Length generation (setf len1 (euclidean-rhythm (gen-repeat size '(16)) 1 12 's :type 2)) (setf len2 (euclidean-rhythm (gen-repeat size '(16)) 1 12 's :type 2)) (setf len3 (euclidean-rhythm (gen-repeat size '(16)) 1 12 's :type 2)) (setf len4 (euclidean-rhythm (gen-repeat size '(16)) 1 12 's :type 2)) ;;; Pitch generation (setf pmat (gen-divide 8 (vector-to-pitch '(c3 c5)(gen-white-noise 32)))) (setf pch1 (pitch-transpose 12 (rnd-sample size pmat))) (setf pch2 (pitch-transpose 8 (rnd-sample size pmat))) (setf pch3 (pitch-transpose 0 (rnd-sample size pmat))) (setf pch4 (pitch-transpose -24 (rnd-sample size pmat))) ;;; Global dynamics (setf dyna (mclist (pink-noise-sample 64 '(pp p mp mf f ff)))) ;;; OMN assembly (setf line1 (make-omn :pitch pch1 :length len1 :velocity dyna)) (setf line2 (make-omn :pitch pch2 :length len2 :velocity dyna)) (setf line3 (make-omn :pitch pch3 :length len3 :velocity dyna)) (setf line4 (make-omn :pitch pch4 :length len4 :velocity dyna)) (setf flute line1) (setf oboe line2) (setf clarinet line3) (setf bassoon line4) ;;; Orchestration and post processing ;; Ambitus (setf flute (ambitus '(g4 c6) flute)) (setf oboe (ambitus '(d4 d5) oboe)) (setf clarinet (ambitus '(c4 g5) clarinet)) (setf bassoon (ambitus '(c2 g3) bassoon)) ;; Re-barring (setf master-meters '(4/4)) (setf flute (omn-to-measure flute master-meters)) (setf oboe (omn-to-measure oboe master-meters)) (setf clarinet (omn-to-measure clarinet master-meters)) (setf bassoon (omn-to-measure bassoon master-meters)) ;; Mute / play (setf olen (length flute)) ;(setf otime (rnd-sample 8 '(wwww www ww w h w ww www))) (setf otime 1) ;; Group orchestration (setf grp1 '(1 1 0 0)) (setf grp2 '(1 1 1 0)) (setf grp3 '(1 1 1 1)) (setf grp4 '(1 0 1 1)) (setf grp5 '(0 0 1 1)) (setf grp6 '(1 1 0 1)) (setf grp7 '(1 0 1 1)) (setf i-list '(grp1 grp2 grp3 grp4 grp5 grp6 grp7)) (setf orchestration (rnd-sample olen i-list)) (setf orch-proc1 (binary-invert (apply-eval orchestration))) (setf instrumentation (matrix-transpose orch-proc1)) (do-timeline2 '(flute oboe clarinet bassoon) instrumentation '(gen-pause x) :time otime) (setf ts (get-time-signature flute)) (def-score group-orch-example (:title "Group orch example " :composer "S.Boussuge" :copyright "2017 s.boussuge " :key-signature 'chromatic :time-signature ts :tempo 88 :layout (list (bracket-group (flute-layout 'flute) (oboe-layout 'oboe) (clarinet-layout 'clarinet) (bassoon-layout 'bassoon)))) (flute :omn flute :channel 1 :sound 'gm :program 'flute :volume 95 :pan 70 :controllers (91 '(52))) (oboe :omn oboe :channel 2 :sound 'gm :program 'oboe :volume 95 :pan 54 :controllers (91 '(55))) (clarinet :omn clarinet :channel 3 :sound 'gm :program 'clarinet :volume 95 :pan 60 :controllers (91 '(57))) (bassoon :omn bassoon :channel 4 :sound 'gm :program 'bassoon :volume 95 :pan 70 :controllers (91 '(57))) ) SB.

Group & Orchestration.opmo

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