\version "2.19.59"

\paper {
    indent = 40
}


fuegoTrpI = \relative c'' {
    \time 2/4
    a2\> <>\! |
    R2 |
    b8\f c r4 |
}

fuegoTrpII = \relative c'' {
    \time 2/4
    a,2\> <>\! |
    R2 |
    b4\f r4 |
}

\score {
    <<
        \new Staff \with { instrumentName = "\partcombine" } {
            \partcombine
                \fuegoTrpI
                \fuegoTrpII
        }

        \new Staff \with { instrumentName = "\partcombineApart" } {
            \partcombine
                { \partcombineApart \fuegoTrpI }
                \fuegoTrpII
        }

        \new Staff \with { instrumentName = "\partcombineChords" } {
            \partcombine
                { \partcombineChords \fuegoTrpI }
                \fuegoTrpII
        }

        \new StaffGroup \with { instrumentName = "Voice per Staff" } <<
            \new Staff { \fuegoTrpI }
            \new Staff { \fuegoTrpII }
        >>
    >>
}