Am I hearing correctly that in aran tge first syllable is stressed? (as opposed to Irish arán, I suppose, where the second syllable is stressed)
Scottish Gaelic tends to accent the first syllable.
How to write 'Those are bread and water'?
"Seo XXX" is a shorten form for "Tha seo XXX"
therefore, This is XX and Those are XXs are both Seo XX in Gaelic
Can 'seo' be used for here and this interchangeably?
Yes. Well, in this context, yes. It could be translated as 'here is..." or 'this is...'.
Could this not say 'this bread and...'?