Song pre releases

My problem is, i like to work on music, i arrange stuff, remix, make covers, etc. I like to post "pre releases" so people can see what am i working on, but i cannot find either an option to do that (wich i guess doesn't exist), or at least a way to delete previous releases. Now, i can do it, but it would cause 2 problems. To me, i'd have a LOT of songs under my name wich are just pre releases, that would cause confusion among people who search my name. To you, it would spam your system and waste your resources.
A solution i think of is a system for bands/musicians/etc to have an option to mark a song as "pre release" (or something like that), and make the song over-writeable and or with an option to be deleted.