I recall reading that much of the Mass was sung in the early Middle Ages, including the Canon.
I'm Eastern rite, but I also revere the classical Roman rite due to its affinity with the Eastern rites. I can tell you hearing the mysteries of the faith, contained in the liturgy, sung in English every Sunday is very edifying to me.
Much of the Old rite could be traceable to the time of St. Gregory the Great, such as the Canon and structure of the Mass. The Paul VI ordo calendar suppressed many of the ancient parts of the Roman rite.
I would favor a reform or the reform that goes back to basics and jettison's the damage that Dom Gregory Dix's scholarship had on the Mass.
Absolutely. The Novus Ordo cut the liturgical ties with the time when the East and the West were united.