Learning music Sites:
Dvorak Mass in D

https://www.learnchoralmusic.co.uk/Dvorak/Mass%20in%20D/mass-in-d.html

 

Mozart Solemn Vespers

https://www.learnchoralmusic.co.uk/Mozart/Vesperae/vesperae.html

 

Bizet Te deum

https://www.choralia.net/bzt04mp3/bzt04mp3en.htm