Adagio for Organ & Strings in g minor - The Modena Chamber Orchestra

Hello, I am trying to use this track in my film. It shows on your website that this music is in Public Domain. Here is your youtube link to this track. https://www.youtube.com/watch?v=77U70lMtkSU But, when my film is uploaded to Youtube..I get a Copyright claim from this track which is owned by Universal Music Group https://www.youtube.com/watch?v=ZIEDPTYPRcA Adagio in G Minor for Strings and Organ - Alastair Ross, Simon Standage, Richard Hickox Orchestra, Richard Hickox Could you please verify and confirm that the music is indeed in Public Domain, and if so please let me know if I should go ahead and raise the dispute in Youtube to remove the Copyright claim. Thank you very much for the great website offering such wonderful music. Thanks, Cali