Startup Idea : Jam music through the phone

I want to create a app to help people jam music through the phone. First creator place his/her own script as original piece. Second one likes it, so he/she post another one to jam the first one. And third one jams with another. And so on. The major fun part is that the user can choose his own play list. First, he/she can pick play timeline before or after the first user and another user. Second, he/she can pick users to play in the list. The listener can vote. All jammed music is formation under the first creator. Example: Creator: John Wing. Song: I am dying to see you tomorrow. New jam 3: Zooka Like: 5 partner: John Wing, Bear, Fannie Jam 2: Lisa Like: 6 partner: John Wing, Zooka, Bear I missed a lot data in the example. My partner and me need to build the policy and guildline on the app.