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Text File | 1998-10-22 | 4.3 KB | 129 lines | [TEXT/MSWD] |
- rnd-ornament min max melody
- &key (step 1) (type 'norm) (rhy-type 'evens)
- (rhy nil) (pcnt 100) (rnd-type 'norm) (to-pcnt nil)
- (step-type 'norm) (rnd-seed nil) (seed-print nil)
-
- legal types 'norm 'rnd
- legal rhy-types 'all 'evens 'odds
- legal rnd-types 'norm 'gauss
- legal step-types 'norm 'change
-
-
- makes random ornamentation of length between min and max.
- the difference of multi-ornament is that multi-ornament
- always ornament up or down.
- rnd-ornament selects by random which way to go every single
- ornament-note.
- with type 'norm it always finds it's way back to the
- beginning.
- so a single note 'a with min 5 and max 5 could result in:
- (a b a b a) or (a -b a -b a) or (a b c b a) or (a -b a b a)
- and so on. higher min and max settings will produce
- more variations (more combinations)
- best way is to experiment with the different settings to
- see what happens.
-
- seed works like in all other random-functions: non-nil
- numbers between 0.0001 and 0.9999 lets you control the
- random-generator.
-
-
- (rnd-ornament 3 7 '(a b c d e) :rnd-seed nil)
- -> always different
-
- (rnd-ornament 3 7 '(a b c d e) :rnd-seed 0.03)
- ->((a -b a) (b c d c b) (c d c b) (d e f g f e) (e d c d))
-
- (rnd-ornament 3 7 '(a b c d e) :rnd-seed 0.07)
- ->((a -b a) (b a b a b) (c b a b c b) (d e d) (e d c d e d))
-
-
- rnd-type let you select between 'norm and 'gauss
-
- (rnd-ornament 3 7 '(a b c d e) :rnd-seed 0.11 :rnd-type 'norm)
- ->((a -b a) (b a b) (c d c d c b) (d e d c d c d) (e d c d))
-
- same seed but different rnd-type:
-
- (rnd-ornament 3 7 '(a b c d e) :rnd-seed 0.11 :rnd-type 'gauss)
- ->((a -b a) (b a -b -c -b a) (c b a b c) (d c b c d) (e f g f e d))
-
- pcnt controls how many percent of notes that will be
- ornamented.
-
- (rnd-ornament 3 7 '(a b c d e) :rnd-seed 0.31 :rnd-type 'norm :pcnt 50)
- ->((a) (b a b a) (c b c) (d c b c d) (e))
-
- when to-pcnt is non nil you can scale from pcnt to to-pcnt
-
- (rnd-ornament 3 7 '(a b c d e f g h i)
- :rnd-seed 0.003 :rnd-type 'norm :pcnt 0 :to-pcnt 100)
- ->((a) (b) (c) (d) (e d c d) (f) (g) (h g h i h g) (i h i))
-
- with step you control the step-amount:
- step '(1) ornaments (a b c) and '(2) (a c e)
- this can make arpeggios.
- step can also be a list of integers.
-
- (rnd-ornament 3 7 '(a b c d e) :rnd-seed 0.31 :rnd-type 'norm :pcnt 100 :step 3)
- ->((a -d a) (b -c -f -c b) (c f c -b) (d a -d a d) (e h e))
-
- (rnd-ornament 3 7 '(a b c d e) :rnd-seed 0.31 :rnd-type 'norm :pcnt 100 :step '(1 5 3))
- ->((a -b a) (b -e -j -e b) (c f c -b) (d c b c d) (e j e))
-
- also min and max can be lists of integers:
- this way you can control more exactly the
- ornamentation-lengths for each note.
-
- (rnd-ornament '(1 3 5) '(2 4 6) '(a b c d e) :rnd-seed 0.11)
- ->((a) (b a) (c d c) (d) (e f))
-
- with type 'rnd repeated notes are allowed.
-
- (rnd-ornament 3 7 '(a b c d e) :rnd-seed 0.31 :type 'rnd)
- ->((a b b) (b c c) (c d d e) (d e f g h) (e g h i i i))
-
-
- with step-type 'change and a list of step-values
- step will change inside each ornamented note:
- step '(1 3) step-type 'norm could be (a b a) (a d a)
- step '(1 3) step-type 'change could be (a b e) (a -b c)
-
-
- (rnd-ornament 3 7 '(a b c d e) :rnd-seed 0.11 :step '(1 4)
- :step-type 'norm)
- ->((a -b a) (b -d b) (c d c d c b) (d h d -b d -b d) (e d c d))
-
- (rnd-ornament 3 7 '(a b c d e) :rnd-seed 0.11 :step '(1 4)
- :step-type 'change)
- ->((a -b d) (b a e) (c d -b a e d) (d h g c d -b a) (e a -e -d))
-
-
- when rhy is a rhythm instead of nil you will get
- matching ornamentation of the rhythm
-
- (rnd-ornament 2 4 '(a b c) :rhy '(1/2 1/4) :rnd-seed 0.31)
- ->(((a -b) (b a b) (c b)) ((1/4 1/4) (1/12 1/12 1/12) (1/4 1/4)))
-
-
- with rhy-type you can select between 'all 'evens and 'odds
- with 'evens length-repeat-l is used and with 'odds
- length-repeat-var is used 'all pick among the two.
-
- (rnd-ornament 4 7 '(a b c) :rhy '(1/2 1/4) :rnd-seed 0.12
- :rhy-type 'all)
- ->(((a -b -c -b a) (b a b a) (c d c b c)) (((1/12 1/12 1/12 1/8 1/8)) ((1/16 1/16 1/16 1/16)) ((1/12 1/12 1/12 1/8 1/8))))
-
-
- (rnd-ornament 4 7 '(a b c) :rhy '(1/2 1/4) :rnd-seed 0.12
- :rhy-type 'evens)
- ->(((a -b -c -b a) (b a -b a b) (c d e d c)) ((1/10 1/10 1/10 1/10 1/10) (1/20 1/20 1/20 1/20 1/20) (1/10 1/10 1/10 1/10 1/10)))
-
-
- (rnd-ornament 4 7 '(a b c) :rhy '(1/2 1/4) :rnd-seed 0.12
- :rhy-type 'odds)
- ->(((a -b -c -b a) (b a -b a b) (c b c b c)) (((1/12 1/12 1/12 1/8 1/8)) ((1/16 1/16 1/24 1/24 1/24)) ((1/8 1/8 1/12 1/12 1/12))))
-
- did I forget anything?
- to be honest I don't now.
-