Would that be the Gabrieli Consort's Praetorius Mass for Christmas Morning, 1620? 1994, Deutsche Grammophon. Awesome stuff, not least for the near definitive In Dulci Jubilo...

You can get it for £7 at Amazon - & hear samples : Praetorius Mass

Any amount of shawms, rackets, dulcians, crumhorns, cornetts, sackbuts, regals etc. in there, but the main instrument has to be Roskilde Cathedral itself.