Re: keyAlterationOrder

[Freeman Gilmore]

On Tue, Dec 22, 2020 at 1:02 PM Mark Stephen Mrotek <carsonmark@ca.rr.com> wrote:

Freeman,

 

http://lilypond.org/doc/v2.19/Documentation/internals/key_005fengraver

I read through the Key_Engraver, url above, and related KeySignature and KeyCancellation.

The only details there, which I think I know, is how the pairs are constructed in the keyAlterationOrder.   And they have it wrong.    I believe it should read:  … step is a number from 0 to 6 and alter from  -2 (flat) to 2 (sharp)?   (Not -2 (sharp) to 2 (flat).)

No details are given as to how the alist order is read or constructed.    I do see The 5^th in the pairs (step).   I know that the alist cannot be read with assoc, at least in its simple form.

Any suggestions were the details of the keyAlterationOrderis explained?

Thank you, ƒg

 

Mark

 

From: lilypond-user [mailto:lilypond-user-bounces+carsonmark=ca.rr.com@gnu.org] On Behalf Of Freeman Gilmore
Sent: Tuesday, December 22, 2020 7:54 AM
To: Lilypond-User Mailing List <lilypond-user@gnu.org>
Subject: keyAlterationOrder

 

Is there a place that explains in detail  keyAlterationOrder?

Thank you, ƒg