Hi folks,

Apologies if I missed the "I'm completely new to this oh god help" forum. I'm struggling to get a easy idea to work properly.

In the following snippet, I'm struggling to get the first gen-loop to function:

 

;=====BIRDCALLS=====
(setf bird1 '(3q d5 leg gs4 d5 leg gs4 d5 leg gs4))
(setf bird2 '(q a3 e. b3 x c5 leg e.. bb4))
(setf bird3 '(e fs4 leg c5 q bb4 3q fs4 stacc c5 bb4))

(setf rest1 '(-q.))
(setf rest2 '(-h))
(setf rest3 '(-w))

;=====OMN MAKER=====
(gen-loop 4 (rnd-pick '((bird1 bird2 bird3) (rest1 rest2 rest3))))
(gen-loop 4 (rnd-pick '((a4 b4 c4) (-q -h -e.)))) ;testing purposes - this kind of works

What I'm looking for is a random pick of one of the three birdcalls, following by a pick of the three rests. I've already noticed that rnd-pick isn't the way to go for that, because I want one set followed by the other, which isn't what rnd-pick is for. But evaluating the first gen-loop only returns errors. I made the second gen-loop for testing purposes, and evaluating that at least returns usable data. So:

1) Can gen-loop and rnd-pick handle variables with more that one type inside (length AND pitch AND articulattion, etc.), and, if so,

2) is there a tidier way to do what I'm after, picking between one set and another a given number of times.

Cheers!

Thanks to ChatGPT (which doesn't know enough about Opusmodus to be of much help, but has enough understanding of Common Lisp to be useful), I have a partial solution:

 

(setf flute-omn (gen-loop 7 (rnd-pick`(,bird1 ,bird2 ,bird3 ,rest1 ,rest2 ,rest3))))

It's a simple syntax problem. I needed to use the backquote (`) along with the comma (,) operator for list splicing. This still isn't doing what I want, per se, but I can figure out the rest from here.

Hi, you can try this:

;=====BIRDCALLS=====
(setf bird1 '(3q d5 leg gs4 d5 leg gs4 d5 leg gs4))
(setf bird2 '(q a3 e. b3 x c5 leg e.. bb4))
(setf bird3 '(e fs4 leg c5 q bb4 3q fs4 stacc c5 bb4))

(setf rest1 '(-q.))
(setf rest2 '(-h))
(setf rest3 '(-w))

;=====OMN MAKER=====
(apply-eval (rnd-sample 4 '(bird1 bird2 bird3 rest1 rest2 rest3)))

 

On 2/11/2024 at 3:55 PM, Stephane Boussuge said:

Hi, you can try this:

;=====BIRDCALLS=====
(setf bird1 '(3q d5 leg gs4 d5 leg gs4 d5 leg gs4))
(setf bird2 '(q a3 e. b3 x c5 leg e.. bb4))
(setf bird3 '(e fs4 leg c5 q bb4 3q fs4 stacc c5 bb4))

(setf rest1 '(-q.))
(setf rest2 '(-h))
(setf rest3 '(-w))

;=====OMN MAKER=====
(apply-eval (rnd-sample 4 '(bird1 bird2 bird3 rest1 rest2 rest3)))

 

Interesting. Yep, that works, too. Thanks!

Any reason why I wouldn't want to go with the ` followed by commas solution? I'm wondering if that will may break stuff later on.

(gen-loop 4 (list
             (rnd-pick (list bird1 bird2 bird3))
             (rnd-pick (list rest1 rest2 rest3))))

 

23 minutes ago, opmo said:

(gen-loop 4 (list
             (rnd-pick (list bird1 bird2 bird3))
             (rnd-pick (list rest1 rest2 rest3))))

 

You guys are brilliant. Thank you.