Ms. Codex 1233 is a pretty amazing manuscript. Originally written in the early-to-mid 15th century, it was used continuously through the end of the 18th century. Written in Cologne and probably used by the canons in the Cologne Cathedral, this notated breviary (a liturgical book containing the canonical hours - daily prayers - with musical notation) includes notes and additions made up to 1794. It also includes splatters of candle wax and one page that got a little too close to a candle!
I love when you can tell, from an early music performance, that an ensemble has given a lot of thought to the ornamentation, the musica ficta, even the way that the different parts are introduced to the listener above and beyond what might be notated on the score.
I also happen to love this take since I was just thinking, a few weeks ago, "I wonder how Rex quem metrorum would have sounded if some of the more 'out-there' historically informed performers had taken it on," a question which I considered totally answered hearing this! If (when?) Ensemble Arborescence ever does come out with an album of the Vitry motets, I'd count myself lucky to get to hear it.
why don't you listen to The Hare's Maggot (first published in Playford's Dancing Master, 1701; nothing to do with the insect "maggot") and then maybe you'll calm down
A clavisimbalum, a medieval harpsichord. The tone of the instrument is delicate yet expressive. Surprisingly it goes well with traditional Japanese musical instruments!