davidestevens

So I'm working through Gregory's excellent new book on building a sequencer. The first sections on transposition and mapping contain a menu and a Coll where Gregory has done the hard work of entering scale names (menu) and degrees of the scale (Coll). Very useful.

Then in the third patch in this section, he has a neat little scale_mapper abstraction. Wouldn't it be nice ( I thought) to be able to change the scales in the mapper using the scale Coll (which contains lists like 1 0 1 0 1 1 0 1 0 1 0 1 for the active notes in a scale) rather than having to do it manually.

It turned out to be a bit more fiddly than I thought (so maybe someone has a more elegant way of doing this), and it involves 2 object from the LObjects library (Lmask & Lclose, which have no zl equivalents), but FWIW, here it is...

(with a reduced version of the live.menu & Coll contents)

comment

zl.sort

zl.join

unjoin

lclose

thresh

zl.sub

zl.lookup

zl.filter

message

zl.iter

lmask

zl.group

live.menu

coll

number

So I'm working through Gregory's excellent new book on building a sequencer. The first sections on transposition and mapping contain a menu and a Coll where Gregory has done the hard work of entering scale names (menu)  and degrees of the scale (Coll). Very useful.
Then in the third patch in this section, he has a neat little scale_mapper abstraction. Wouldn't it be nice ( I thought) to be able to change the scales in the mapper using the scale Coll (which contains lists like 1 0 1 0 1 1 0 1 0 1 0 1 for the active notes in a scale) rather than having to do it manually.
It turned out to be a bit more fiddly than I thought (so maybe someone has a more elegant way of doing this), and it involves 2 object from the LObjects library (Lmask & Lclose, which have no zl equivalents), but FWIW, here it is...

So I'm working through Gregory's excellent new book on building a sequencer. The first sections on transposition and mapping contain a menu 

step-by-step-a-little-mapping-addition

fwiw, I've had to solve this problem in the past for a pitch quantizer, and I had to enlist the forums help to do it, turns out doing it without externals is... tricky.

here it is, it sits as a part of our groups shared quantizer, that is osc-addressable, it's heaps of fun.

Also, do take note to not share too much of Gregory's fine work on the forums, it is after all, premium goodies ;)

fwiw, I've had to solve this problem in the past for a pitch quantizer, and I had to enlist the forums help to do it, turns out doing it without externals is... tricky. 

here it is, it sits as a part of our groups shared quantizer, that is osc-addressable, it's heaps of fun.
Also, do take note to not share too much of Gregory's fine work on the forums, it is after all, premium goodies ;) 

Yes, I did consider that (which is why I took out the destination patcher). 

And... wow! You're not wrong about the trickiness of your solution. I'm going to try and unpack that now!

That use of zl sub 1 at the top - v cool.

Yes, I did consider that (which is why I took out the destination patcher). 
And... wow! You're not wrong about the trickiness of your solution. I'm going to try and unpack that now!

I guess that's one less thing I'll have to write up to include in 

I guess that's one less thing I'll have to write up to include in Steps Beyond, then. :-)

I'm sure that you could come up with a much more elegant solution than me!

I was going to suggest One Step Beyond, but that would be sheer madness. ;-)

https://cycling74.com/forums/finding-the-item-closest-to-an-incoming-float-in-a-list-with-size-256-items

with an assist from https://cycling74.com/forums/finding-the-item-closest-to-an-incoming-float-in-a-list-with-size-256-items

Step by Step - a little mapping addition