Yeomen chorus practice files
Chorus practice files were created by the Durham Savoyards for all the G&S shows ar argentium.com.
You can find the Yeomen files at this link.
Unfortnately, they have allowed their security certificate to lapse, and you will get a security warning about accessing this link.
However, if you skip over the warnings, the files are still there and perfectly safe.
When you get to the warning page, click on Advanced. Then click on Proceed to arjentium.com.