some piano stuff

[Jan Janovcik]

Hi,
I'm currently typesetting a piece from Ravel in which the following model 
repeats several times.

\include "deutsch.ly" 
\new PianoStaff {
  <<
  \context Staff = "RH" {  
   \clef treble
   \key c \minor
   \relative c' {
    %\override PianoStaff.TupletNumber #'transparent = ##t
    \set tieWaitForNote = ##t
    \change Staff = LH
    \times 8/10 { g32 as h d \change Staff = RH g a h d g~ g,~} <g g'>2.
   }
  }
  \context Staff = "LH" {  
   \key c \minor
   \relative c' {
    \clef treble
    << { s4 <h d as'>2. } \\ { g1-> } >>
   }
  }
 >>
}

1. What's the problem with the tuplet number? I'm getting a programming error  
( "Spanner `Tie' is not fully contained in parent spanner `TieColumn' ") and 
the tuplet number (10 in this case) is way down bellow the lower staff. Is it 
because of the staff switching?

2. I would like to have the collision resolution shift the g whole note (LH, 
voice two currently) to the left and those quick notes going from left hand to 
the right to the right. I suppose it should have something to do with shiftOn 
and shiftOff but I haven't managed to do it... :-(

3. The curly brace at the start of the piano staff is shifted upwards - is it a 
bug or am I doing somthing wrong?

Thank in advance for any help or suggestions.

Jan Janovcik

P.S. I'm using 2.8.7 on Windows XP