quirky repeats

[Shelagh Manton]

I am using lilypond 2.7.10.
I'm trying to type set a repeat segment which has a structure like this.

music ||: music [ small music for 2nd & 3rd time only] music :||

I can cope with the repeats but how would I put the bracketted section in?
The brackets go over two staff as it's a piano score and the markup
indicates the 2nd & 3rd time. The bracketted section shares the bar with
a whole note.


Shelagh
                   /2nd &3rd\
---||:-music--|o--|---!!0----|-|----music-----:|| 
---||:-music--|o--|---!!-----|-|----music-----:|| 
                   \        /