abc2midi messes up with repeats in sections after a [1..[2 |] Jane found out that abc2midi output goes rather random sometimes. I've narrowed this down to sections of music after a [1..[2 |] repeat has happened. Work around by adding explicit |: for those sections, which doesn't (to my mind) look so good printed but gets correct behaviour from abc2midi.

X: 6
T:Mazurka de Lapleau
N: Change: MazurkaAvignon.abc
M:3/4
L:1/8
Q:130
K:G
"D" DG | "G" B2Bd BG | "G" B2Bd BG | "D" A2Ac BA | "G" B2G2DG|
         "G" B2Bd BG | "G" B2Bd BG | "D" A2Ac BA | "G" G4:|
"D" dB | "G" GD GB dB | "C" c2A2cA | "D" FD FA cA | "G" B2G2dB |
            "G" GD GB dB | "C" c2A2cA | "D" FD FA cA | "G" G4:|