1. Remove date from front page. Don't want it instantly out of date.
2. Add instrumen name, if present.
3. Revise A5 to single page front cover with little buzzard.
I was using \begin{center}..\end{center} to centre the tune graphic,
followed by the change notice, if any.
But this leaves a paragraph gap after the center section and hence a gap
between tune graphic and change notice.
Change to use figures to position the graphic, include the change notice
as a caption, and use {\centering} around the image to centre just the image.
A zero indent means that you really then want space between paragraphs.
And that in turn means that you get extra spaces between a tune and
any Change notification.
So for now use the default indentation to signal a paragraph and see
how that goes.
Possibly the tunes should be generate such that there is no paragraph
between the graphic and the change notification, but I'd have to work
out how.
Put a big title in English Towne, the official Havoc font.
Add a title for each volume, and also print the subtitle on the cover.
Add the buzzard, too. On A5, we now need to split the title page across two
physical pages. This looks OK to me.