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: 1
T: Rigged Ship, The
M: 6/8
L: 1/8
Q: 140
K: Gmaj
"G" A | "Em" B2 E EFE | BAB "G" d2 B | "D" A2 F DED | FEF A2 A |
        "Em" B2 E EFE | BAB "G" d2 B | "D" A2 F DEF | "Em" E3 E2 :|
B | "Em" e2 B e2 B | "C" efg "D" f2 e | d2 A d2 A | def "Em" e2 B |
         e2 B e2 B | "C" efg "D" f2 e | "G" d2 B "D" A2 F | DEF "Em" E2 :|