by Michael Engelhardt
The publisher’s website has a copy of the score and a fine recording. Go there, then click on the “Preview” button.
Notice the instructions in the score. For example, at the beginning that’s a tenor solo until the repeat sign, then all tenors and basses sing.
https://www.giamusic.com/store/resource/gaudete-satb-vocal-score-print-wlg149
Practice tracks:
How to speed up a video: Start the video, then look in the video window, lower right side. There is an icon that looks like a gear. Click it and then select “playback speed.” Try 1.25, which will play the video a bit faster.