The contract will often state the publisher has power of attorney over the songs in the writer’s name. Musical composition can refer to an original piece of music, either a song or an instrumental music piece, the structure of a musical piece, or the process of creating or writing a new song or piece of music. The word "song" is widely misused by people in the popular music industry to describe any musical composition, whether sung or played only by instruments. People who create new compositions are called composers in classical music. In popular music and traditional music, the creators of new songs are usually called songwriters; with songs, the person who writes new words for a song is the lyricist. Avid Mojo: includes Composite and S-Video with two channels of RCA audio. There is an optional component video cable that can be added to this interface. Composers should negotiate their credits carefully, because a good credit can be vital to getting higher fees for future work. A composer may request "single card" credit in the main credit sequence of the movie, whether the main credit sequence is at the beginning or the end of the movie. How size should have my datastores ?