NOTATIO

It seems in German uses Italic for poem titles in a collection and puts tempo marks as Roman but between quotes.
I honestly feel less bad now for creating my own conventions...

When compiling the Preface of an edition, is there a global convention for mentioning the title of a lied's poem and the tempo text of a piece of music? For example, I'm using regular typeface between double quotes for the title of poems and italic without quotes for tempo markings. Someone told me ...

*raise hand*

What software creates this by default? Or were you asked to do it?

As John said, it is not too bad to begin with.
If this is a full score, and it is a vocal score, why not have the other staves smaller in general?
Or even just reduce the ones to, say, 95%, and it should prove to be much better already.

In this case I would only show the Flute 1 uncondensed staff and hide the Flute 2 one. If this is not of your liking, I would add "1°" over the first system and then the same parenthesised at each new page (or left-hand page, if you're sure it will be printed). Another solution is to have ...

I guess it depends from the context. If you're looking into an encyclopedia or phone book, of course it will be last+first name.
On a book's cover, it is first+last name.
So... yes, it depends :-D

I don't get it, both Calogero and Salvatore can be first names.
Did you want to say that we present first and last name in a non-common order?

paper size isn't math. This looks a lot like math to me! Geometrically, a sheet of paper is a rectangle, unless I'm missing something in your statement. I like your reflection on Westerners associating this coordinate system to what we write a lot. What about cultures (like Japanese) that read vert...

there's no "rule", there's no need for it. Interesting. So, lacking specification, if you see 9x12, what do you think? In Italy, there is a convention I discovered today (!) among the library system that states that the first number is the height and the second number is the width. That i...

since most paper used in publishing is in portrait mode, I generally presume that the shorter number is the width, and the longer the length. most writing paper here is measured this way: 8.5 x 11 (letter), 8.5 x 14 (legal), etc... So this is your assumption based on habit and experience, rather th...