Just to note: even thoguh they are priests, they do not wear chausbles. They were dalmatics (the vestment of the deaon) and tunicles (the vestment of the subdeacon) just like a proper deacon or subdeacon would. For most purposes, they are treated as if they were deacons and subdeacons.
You can have High Mass whenever you want. The only thing is that it is not like the NO, where there is latitude on whether the priest can chant/not chant, use incense or no incense, etc., etc. Adn another thing is that the Propers (Introit, Offertory, etc.) have to be sung. No singing hymns instead.
High Mass- priest, deacon, subdeacon , chanted propers, incense.
Low Mass- priest, server(s) no chanting and no incense.
Sung Mass- which is a compromise- priest, servers, chanted propers, incense is optional.
BTW…I don’t care what people say it is, “tonsure” sounds like some sort of medieval punishment to me.
Ahem When I first heard of it, I thought it sounded a bit like the punishments they dole out over here if they catch you eating during Ramadan- pop you in jail and shave your head.
But one of the mystical interpretations is that it represents the crown of thorns. This is taken from one of the prayers used in conferring it.