Staff bracket and figured bass

[Marcin Konik]

Hi,

I am working on critical edition of some 18th century music. I was working for many years in Finale, but after discovering Lilypond, I want to prepare my scores in this program. I almost succeeded, still have some problems.

1) I need to change the default staff bracket - I know I could use something like

\new StaffGroup \with { systemStartDelimiter =
            #'SystemStartSquare }

but what I need looks basically like this:

How to control positioning and thickness of such element?

​

2) I need to have figured bass aligned like at the example - in Lilypond it's "flowing" - like at the second example:


\version "2.18.2"

voiceone = \relative c' {
c c g' g a a g2
}

voicetwo = \relative c {
  \clef "bass"
 c'4 c c, c f f c2
}

\score {
\new StaffGroup {
 <<
 \new Staff \voiceone
 
 \new Staff <<
   \voicetwo
   
    \figuremode {
 <5 3>4 \skip4 <5 3>4 \skip4 <3>4 \skip4 <8 5 3>2
     }

   >>
 >>
  }

}
​

I would be very grateful for help - I need to finish my work quickly.

Just in case I attach the whole score in which I have to make changes like at the first example.

001_Domine.ly
Description: Text Data