This December, we are singing:

Messe de Minuit pour Noel by Marc-Antoine Charpentier

Festival of Carols by Frank Ferko

You can find many recordings of the Charpentier online, but here’s one recommended by Sonya:

There are many online note learning tools for this too. One really useful site is Choralia, and here is the link for Messe:

Sonya has made a set of  Ferko practice files for us. Please click on the Dropbox link below to go to the folder with four files, one for each voice. You don't need a Dropbox account to view them. After you open the folder and click on the chosen voice file, you can play it online, but it's best to download the file to your computer, and after that you can transfer it to your phone etc.
https://www.dropbox.com/sh/p8awk5lrklax2d1/AAAJOa3o_No-sdNdoZHhalyTa?dl=0

And here is a link to an online recording of Ferko piece from the publisher: