PianoStaff label moving downwards

[Benjamin Esham]

Hello all,

I'm typesetting some piano music with LilyPond 2.4.2, and I'd like the 
grand
staff to be labeled "19".  Using the code below, it was working fine, 
but all of
a sudden the label moved downwards.  I can't figure out what I changed 
to
cause this; does anyone have any ideas?  Thanks!

\context PianoStaff <<
   \set PianoStaff.instrument = "19." %\markup{\fontsize #4 {19.} 
\hspace #1.0 }
   \new Staff <<
     \rightNotes
   >>
   \new Staff <<
     \set Staff.printPartCombineTexts = ##f
     \partcombine
     \leftQuarterNotes
     \leftNotes
   >>
>>

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Benjamin D. Esham      {      http://bdesham.net
address@hidden      }      AIM: bdesham 1 2 8
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