The year my daughters were baptized, we had a Maundy Thursday, Good Friday, Easter Vigil (Saturday evening, at which they were baptized), and Easter Sunday service. It's a powerful sequence, but also murder on the clergy involved if only one priest conducts them all.
In that smallish parish, it was the only year we observed all those services in seriatim. Afterwards, at least one of them, sometimes two of them, dropped out.
But, in larger parishes, where you have a second priest or a couple of deacons, you can conduct them all without driving the clergy to drink!
My church is totally Bible believing Christian 1st century type.
The pastor didn't get any sleep last nite preparing for sunrise service, breakfast and regular service.
He didn't get driven to drink.
I imagine he is sleeping now...
I know what Maunday and seriatim mean but we use words everyone understands.
Not may Latins around anymore.