globals and grace notes

[Paul Scott]

Using globals helps me save a lot of typing and makes time and measure 
number mistakes far less likely.  Is there a way I can eliminate the 
extraneous 4/4 and extra bar line at the end of this example?

TIA,

Paul Scott

\score{
    \context Staff <<
        { \time 2/4 \skip 2*3 } 
        {
            \notes\relative c {
                %\time 2/4
                \repeat volta 2 { \acciaccatura{ fis16[ gis ais] }
                                  b8 r r4 }
                \repeat volta 2 { \grace{ fis16[( gis ais] }
                                  b8) r r4 }
                \repeat volta 2 { \appoggiatura{ fis16[( gis ais] }
                                  b8) r r4 }
            }
        }
    >>
}

grace.pdf
Description: Adobe PDF document