Ubuntu Security :: Changing Permissions Of Files To Reflect Their New Folder?

I have a shared folder set up that allows all users on the computer to have access to all the music on the computer. In the folder with all the music the group 'music' has permission to add and delete files and all users are members of 'music'. This should allow all users to have complete access to these files, however, when I add files to the folder they retain their original permissions and do not take on the permissions of the folder. I could change the permissions of the files to reflect the folder every time I add a cd. But that is annoying. What I am wondering is if there is any way to make files automatically reflect the permissions on the folder they are moved into.