I figure this is a good place to ask - what’s with beat 3 (bars 1-4) of this excerpt? I get that the slashes are just a repeat shorthand but why is the slash on beat 3 elevated?
Thanks!
I’m not sure what piece that is and would love to check the source, but my first guess is that you’re meant to play the dotted rhythm on B on beats 2 and 4, and on D on beat 3. Never seen that before, though.
Me too.
Can be also G, B, D, B.
However if the music is referring to Horns or Trumpets in the pre-valve era, it cannot be B.
Nevertheless very interesting question.
Yes, I changed to D instead of C while you were typing. 
And yes, it does look like classical-era brass, which rules out the B.
@michaelvh What’s the source?
If it was G-B-D-B I’d expect it to be written out at least once beforehand. My guess is that it’s merely a way to avoid miscounting the slashes, and it’s just G throughout. But a picture of the preceding system(s) would be very enlightening.
We don’t know what is on earlier bars. It may be detailed there.
I’d like to check the score.
More info: Horn parts from Barber of Seville, end of big #5. Public domain Kalmus edition. The score I’m looking at just has the (written) Gs being repeated. Still - the elevated slash had us scratching our heads.
(Good guess at being a pre-valve brass part - should have provided this detail up front).
Yup, me too!
I’d put it down to publisher-error.
The exact same error, eight times in a row? No, this is just the level of cheapness typical of Italian opera engraving.
What does the horn part look like? (Ricordi edition)
I’m afraid it will be exactly the same as yours… I’ve had my hands on Ricordi parts of a very obscure piece nobody knows — the Merry Widow or something like that, and boy was it ugly and messy…
[edit] part of my post is a joke 
Everything written out like the score - mine is from 1987, meanwhile there is new critical edition .