I'm danpaulski and I will be uploading works to this site once I clear up a confusion which I state below.
My father has choral compositions uploaded in IMSLP, and we would like to upload copies of them here in CPDL. Is that possible, given that the pieces are already under the Creative Commons License; i.e. is the copyright site restricted, and should I notify both sides about it?
![Confused :?](./images/smilies/icon_confused.gif)
Your answer would be very much appreciated. Thank you.