i've read in several places that latin might have had a pitch accent rather than a stress accent in the golden age. varro talks about the "pitch" (altitudo) rather than the stress of the accent (De Lingua Latina, 210, 10-16, GS).
i know that later on, latin like greek definitely had a stress accent. but what's the evidence for the pronunciation of the accent as stress in the golden age?
i'd like to ...