[Desdemona]

And no music during the Eucharistic Prayer.

This is the one that confuses me. I've heard it chanted. Does this mean that the modern Mass settings that have undercurrent background noise is to be eliminated, or that the Eucharistic Prayer must be said.

[lrslattery]

No. There are some places where people play 'background' music during the Eucharistic Prayer. This was prohibited years ago, yet some still insist on doing it.

[ninenot]

Historically, playing music during the Canon was strongly discouraged. Thus, when the choir used, e.g., Mozart's "Coronation Mass," the priest WAITED until the end of the Sanctus to begin the Canon, and WAITED until the end of the Benedictus to begin the prayers following the Elevation.

Musicians as a group tend to think that continuous music is a good thing, which demonstrates that they are a bit dotty.