Duke Databank of Documentary Papyri electronic corpus of all Greek and Latin texts found on papyri, ostraca or wooden tablets which have been published in discrete volumes or in series.
German page about the audible impression of Ovids Metamorphoses. Very interesting. Though it is my very belief that the Romans used the tone pitch for the declamation, too (otherwise the ridiculousness of the declamation in Satyr. wouldn't be that explb.)