Comment #4 on issue 2989 by [email protected]: Funny alignment of different bar lines at the end of a system
http://code.google.com/p/lilypond/issues/detail?id=2989
Concerning #3: probably one "canonical" reference would be Sinfonia 45 by Haydn. See
<URL:http://imslp.org/wiki/Special:ImagefromIndex/22608>, page 40ff
