i am so overwhelmed .i have researched up the wazoo.
here is my situation:
i have different guys who write music for me
one who does whole compositions, including the lyrics
another who just contributes strings to whatever i send him
another who did one piano piece
another who has so far, written one piece
i was starting to do a work-for-hire contract with each one, very simple as i just want it to say that;
i pay them x fee
they give me piece
i own all rights
they have no rights
they get credit for whatever they contributed
everyone is happy with this
however, in my research, i read one thing that was a worry:
the work must come within one of the nine limited categories of works listed in the definition above, namely (1) a contribution to a collective work, (2) a part of a motion picture or other audiovisual work, (3) a translation, (4) a supplementary work, (5) a compilation, (6) an instructional text, (7) a test, (

answer material for a test, (9) an atlas;
SO MY QUESTION:
is a piece of music fall under one of these catagories, seeing as how it will techincially be part of an album..AND as seperate downloadable singles???
ALSO:
what about my string player?
how do i change his contract..seeing as how he is not doing one piece, but many..and is merely contributing???
i know i might have to cave and find an entertainment lawyer, but cna anyone shed light on any of this?? would be greatly appreciated!
thank you very much!!!