Grace-midi bug

[Heikki Johannes Junes]

The midi-output of sequences of grace-notes is broken. Consider:

\score { 
    \context PianoStaff <
        \notes \relative c''' \context Voice = i {
            c2 c4 c4 c4 c4
        }
        \notes \relative c' \context Voice = ii {
            a2
            \grace {[a32 e' a,~<a e'>~]~<a'8 e a,>}
            e'4 e4 e4 e4
        }
    >
    \paper{ }
    \midi{ \tempo 4 = 120 }
}

After graces voices (i) and (ii) are no more synchronized. One
notices that after compiling, and comparing the midi (by listening) to the
paper-output (by looking).

The example above was reduced and modified from a real piece.

--
      Heikki Junes