alignAboveContext not working

[Richard Opheim]

Hello. In the code below...

 

\version "2.12.3"
\layout {\context {\Score }}
PartPOneVoiceOne =  %{Leader %} \relative e' {\clef "treble" \key c \major \time 6/8
\partial 4. e8 e4
<<{ e8 e4 e8 e4 d4. e4 c8 ~}
\new RhythmicStaff \with {alignAboveContext = #"main" fontSize = #-3
\override Stem #'length = #5
\remove "Time_signature_engraver"
\remove "Staff_symbol_engraver"
\remove "Bar_engraver"}
{b4 b8 r8 b8 b8 r8 b4 b4 b8}>>

 

... the ossia bars show up below the staff. I realize that I should put in \new Staff = "main" --- but where?

Richard Opheim