My interest is piqued, however many questions come to mind:
-Is this actually legal? Can you obtain the rights to sell the songs, even if it is for charity?
-Who is Dr. Simone, and what is his/her involvement with this concept? From your original post, this is presented in a rather vague manner.
-What kind of arrangements are you expecting to hear from this project?
-What style of singing do you plan on doing on your "reserved tracks" (meaning you MeleeGurl).
-Will you be able to stick with this project until it's completion, or are you going to bail out?
for now those questions will do, i may be interested in singing, i don't know about arranging however...i'm a low end baritone.