Appending coda on last line

[Helge Kruse]

I have a score with "da capo al coda". And the coda is exactly one 
measure. Therefore I don't want to put the coda on a new line. But it 
should be a gap between the last measure of the main part and the coda. 
Additionally I would like to indicate that the last measure _is_ the coda.

I have written the measures, but I failed to put them on one line. Can 
you help me?

Helge



\version "2.15.38"

AHrppartA = \relative c'{

<< { c'8 d e a c, b16 a r8\fermata e'16 d^\markup{D.C.} }
  \\ { c16 a d a e' a, a' a, e8 d <c a'>} >> | % 37

  \bar "||"

  \key a \major

}

AHrppartB = \relative c{

  \clef bass

<< { e'8 d c b a[ gis] } \\ { <e a,>2 e4 } >>
<a e a,>8\fermata r

  \key a \major

}

\score {

<<

    \context PianoStaff <<

      \set PianoStaff.instrumentName="Piano"

      \context Staff = AHrppartA\AHrppartA

      \context Staff = AHrppartB\AHrppartB

>>

>>

}

BHrppartA =\relative c' {

  \key a \major

  \clef treble

   b'16 cis d b cis a b gis <a e cis>2\arpeggio\fermata \bar "|."

}

BHrppartB =\relative c {

  \key a \major

  \clef bass

  d8 fis cis e' a,16 e cis e a,4\fermata

}

\score {

<<

  \context PianoStaff <<

    \set PianoStaff.instrumentName="Piano"

    \context Staff = BHrppartA\BHrppartA

    \context Staff = BHrppartB\BHrppartB

>>

>>

}