Many thanks for this. Yes, a fuller article would make mention of 'crasis' - where two successive words are melded into one utterance - which inevitably affected pitch and accentuation. As to breathings, their affect on pitch (as opposed to pronunciation) was null: the rough was a mere aspirate, and the 'smooth' was in effect the absence of any aspirate. Latin, as a fellow Indo-European language, had inherited initial aspirates, although these were fewer in number than in Greek, where rho and upsilon always had initial aspiration, and where Indo-European s- had become an aspirate (compare Lat. serpo with Gk herpo, or Lat. sal with your Greek hals.)