Hello, I am Tamas and kind of new in Opusmodus, but learning pretty quickly. It is probably in easy case but I'm stuck at the moment:

I ha a rising c major scale, and then I always want to swap only 2 pitches at a time from the scale. At the next evaluation I want to repeat the same process but already with the previously processed new scale. Is there any way to automate this process because I only came up with this idea which is I am sure the most beginner solution 🙂 

 

(setf scale '(c3 d3 e3 f3 g3 a3 b3))

(setf first (position-swap (rnd-sample 2 '(0 1 2 3 4 5 6) :norep t) scale))
(setf second (position-swap (rnd-sample 2 '(0 1 2 3 4 5 6) :norep t) first))
(setf third (position-swap (rnd-sample 2 '(0 1 2 3 4 5 6) :norep t) second))
(setf fourth (position-swap (rnd-sample 2 '(0 1 2 3 4 5 6) :norep t) third))

(list first second third fourth)

 

Thank you all in advance! 

All the best, Tamas

With :seq set to T you will get what you are looking for:

 

(setf scale '(c3 d3 e3 f3 g3 a3 b3))

(setf pos (gen-loop 4 (rnd-sample 2 '(0 1 2 3 4 5 6) :norep t)))
=> ((6 0) (0 4) (5 4) (0 2))

(position-swap pos scale :seq t)
=> ((e3 d3 c3 f3 g3 a3 b3)
    (e3 d3 g3 f3 c3 a3 b3)
    (e3 b3 g3 f3 c3 a3 d3)
    (c3 b3 g3 f3 e3 a3 d3))

Ohh nice! Thank you, so simple.