The EU server is located in The Netherlands, where Ravel is PD. You may have noticed that the following disclaimer is shown when downloading a file from IMSLP.ORG:
IMSLP makes no guarantee that the files provided for download on IMSLP are public domain in your country and assumes no legal responsibility or liability of any kind for their copyright status. Please obey the copyright laws of your country and consult the copyright statute itself or a qualified IP attorney to verify whether a certain file is in the public domain in your country or if downloading a copy constitutes fair use.
and a similar warning is shown to users whenever they activate a link pointing to the EU server:
IMSLP-EU makes no guarantee that the files provided for download on IMSLP-EU are public domain in your country and assumes no legal responsibility or liability of any kind for their copyright status. Please obey the copyright laws of your country and consult the copyright statute itself or a qualified IP attorney to verify whether a certain file is in the public domain in your country or if downloading a copy constitutes fair use.
The above warnings are specifically valid for users located in countries such as France, where exceptions exist with respect to the rules observed by most EU countries. Considering specific local constraints is clearly left to the user.