Brian Daurelle

Hey all, I'm trying to design a rudimentary stats-driven way of choosing notes that mimics tonal and modal behavior. I've tried several different approaches for encoding modal information, and one that I think has a lot of promise is list of this form:

where each slot represents a chromatic pitch: 0s indicate notes that aren't in the scale/mode, and lower numbers indicate the note that gets the most statistical weight.

My problem, then, is how to rotate the non-0 numbers from a list like this without changing the positions of the 0s. So, for example, the first two 'modal rotations' of the above list would be 

I imagine there's a way to do this with zl objects, but it is beyond my current zl.abilities, any advice?

Hey all, I'm trying to design a rudimentary stats-driven way of choosing notes that mimics tonal and modal behavior. I've tried several different approaches for encoding modal information, and one that I think has a lot of promise is list of this form:
1 0 5 0 3 6 0 2 0 7 0 4
where each slot represents a chromatic pitch: 0s indicate notes that aren't in the scale/mode, and lower numbers indicate the note that gets the most statistical weight.  

My problem, then, is how to rotate the non-0 numbers from a list like this without changing the positions of the 0s. So, for example, the first two 'modal rotations' of the above list would be 
4 0 1 0 5 3 0 6 0 2 0 7 
7 0 4 0 1 5 0 3 0 6 0 2 

I imagine there's a way to do this with zl objects, but it is beyond my current zl.abilities, any advice?

Hey all, I'm trying to design a rudimentary stats-driven way of choosing notes that mimics tonal and modal behavior. I've tried several diff

zl-help-with-"selective-rotation"

If your list has a fixed length, you could do something along these lines:

If you want to use lists of unknown length, here is an approach using a coll (you could cook a zl-only solution using [zl nth])

HA yes thank you, that's exactly what it needs to do! A fixed length is fine, since I'm only dealing with chromatic pitches in the abstract, with no plans for microtuning, for this particular project :D And it even looks as confusing and impenetrable as I was imagining. Thank you for working it out so quickly!

HA yes thank you, that's exactly what it needs to do! A fixed length is fine, since I'm only dealing with chromatic pitches in the abstract, with no plans for microtuning, for this particular project :D And it even looks as confusing and impenetrable as I was imagining. Thank you for working it out so quickly!
-bd

Here is an alternative with zl nth. Note that I use a zl lookup instead of the convoluted zl lace + zl iter.

zl help with "selective rotation"?