DS and Volta: problem with playback
I have a problem when playing back the attached piece (it's part of a longer piece but that's not really relevant)
It doesn't play back as I expected it to do.
What I expect to hear is bars 1-4, then bars 5-8 (the first volta), then bars 1-4 again, then bars 9-12 (the second Volta.)
What I actually get is:
bars 1-4, bars 5-8 (first volta) bars 1-4 again then bars 10-12, I don't get bar 9.
and I just don't understand why.
If I remove the 2nd Volta line completely, I get what I want, but I'd like to know what's wrong with my notation, it looks ok to me but obviously is incorrect somewhere.
Can any proper musician tell me what I've done wrong?