The Immaculate Friars have, in the last few years, gone over to the Extraordinary Form of Mass, but strictly 1962; and this, combined with their recent move to it (last time I was in Florence, their Masses were in Italian, but ad orientem), and some local curiosities, made attending their Mass devout but ever so slightly distracting.
For a start, one of their sisters played the organ very nicely before Mass - however this was to accompany another dear sister, who is perhaps not well suited to singing solo: and this well-meaning duet recurred at the offertory, after communion (when I recognized Ubi caritas "in a most unfortunate disguise") and after the end of Mass. It would have been far preferable to just have the organ, as was in fact done during most of the Canon - including at the Elevations, when really it should have fallen silent; of course, this was doubtless done out of pure good will.
This Low Mass avec voix seule et orgue was a dialogue Mass, and one in which the congregation even said the whole of the Gloria in excelsis, Sanctus and Agnus Dei with the priest - which is allowable, of course, being one of the envisioned grades of dialogue Mass, but unusual. At least the Lord's Prayer was reserved to the celebrant until the usual response.
Most notably, it was a Low Mass in which the very late pre-conciliar rubrics about when to sit, stand and kneel were observed (as hardly ever happens in Australia and elsewhere I've been - when I was younger and even more foolish I insisted on following those rules of posture once or twice when no one else did, until pity was taken on my idiocy and I was disabused of that particular type of pedantry): so we all stood when the priest went up to the altar, just as if it were a High Mass, and did likewise at the Preface, Pater noster and Postcommunion. There was also some cross-contamination from the Ordinary Form, for the congregation didn't kneel till after the Sanctus and Agnus Dei, whereas from all I recall in the traditional Mass one kneels before both.
The server came down to the lectern and read the Epistle in Italian (the priest remained at the altar, and I assume he read it in Latin); later, after the celebrant read the Gospel in Latin at the altar, he then removed his maniple and came down to the lectern to read it again in Italian, before giving a fervent and lengthy sermon (he seemed to be rather in favour of our supernatural elevation by the power of the Holy Ghost, as a Catholic ought be).
Finally, the celebrant, being a very short fellow, and offering Mass at a grand and elaborate altar with a very high mensa and an even higher tabernacle, needed the assistance of the server at Communion - the latter brought to the altar a large box for him to stand on, so he could retrieve the ciborium! The Lord moveth in wondrous wise indeed at Ognissanti in Firenze.
Mass, by the way, was in red vestments, and one of the friars helped me by telling me it was the Common of Martyrs in Paschaltide that was being used, but I didn't find out what saint or saints was being commemorated - perhaps a local feast?
Low Mass with sermon took 50 minutes: it didn't seem at all slowly celebrated, so the sermon must have been lengthy indeed.