We no longer fix up such titles other than the primary title.
The primary title uses the ", <prefix>" so the sort order can
ignore prefixes words like 'The' or 'An'.
1. Only show tune markers when a tune change is in the middle of a line.
2. Only show repeat starts |: if the repeat start is in the middle of a line.
3. Final bar end mark must be a thick line.
The official rules for a repeat are that if there is no left repeat
marker |: then the repeat starts at the previous double bar.
Jim Hague