See:
http://imslp.org/wiki/Category:Emment,_Daniel_Decatur
It looks like the naming of this composer is wrong, but I don't know how to correct this. The last name is written as 'Emment' in stead of 'Emmett'.
Emmett
Moderators: kcleung, Wiki Admins
Re: Emmett
The page has now been moved to http://imslp.org/wiki/Category:Emmett,_Daniel_Decatur
It's not difficult to move composers, though the process involves a couple extra steps than a normal page rename does. Firstly, you have to copy the contents of the old composer page to a new category page with a different (hopefully correct) title; secondly, you have to move all the pages in the old category so that the composer name in parentheses corresponds to the name of the new category; and lastly, you have to redirect the old category to the new one (this is done by replacing the entire text of the page with #REDIRECT [[:newpagename]]').
It's not difficult to move composers, though the process involves a couple extra steps than a normal page rename does. Firstly, you have to copy the contents of the old composer page to a new category page with a different (hopefully correct) title; secondly, you have to move all the pages in the old category so that the composer name in parentheses corresponds to the name of the new category; and lastly, you have to redirect the old category to the new one (this is done by replacing the entire text of the page with #REDIRECT [[:newpagename]]').
Re: Emmett
Thanks @KGill. Looking at the description what's needed to rename a composer, I'm glad you did it. 