Re: How to insert an "auxiliary" staff for divisi strings?

[Mark Witmer]

Sorry, I forgot that crucial step. You can name a context when you
create it:

\new StaffGroup = "violinII" \with { ... } { ... }

That's the value you can use for alignAboveContext and
alignBeforeContext. Thus:

\new Staff = "violinIdivisiB" 
     \with { alignAboveContext = "violinII" } { ... }      

Here's more information about how to create and name contexts.

http://www.lilypond.org/doc/v2.17/Documentation/notation/creating-and-referencing-contexts

And more information about context layout order:

http://lilypond.org/doc/v2.17/Documentation/notation/context-layout-order

I hope that makes more sense!

Mark