The 2nd part has blank staves, so you can compose your own harmonies!
Gregorian Chant Accompaniments
I followed the “Brébeuf hymnal method,” in which every verse is written out…
Free Download of two sets of accompaniments for chants of the new Misal Romano, Tercera Edición.
There is a built in tendency for nervous musicians to rush things – I think as your heart beats faster, your perception of time is dilated. As you build more confidence your sense of timing improves too.
Resources for Accompanying Gregorian Chant