* A specific piece of music titled "Emmanuel": If this is the case, we need more information about the piece. Is it a song, a symphony, an instrumental piece? Knowing the genre and any other details about the piece would help identify the composer.
* The name "Emmanuel" in a religious context: In Christianity, "Emmanuel" is a name for Jesus Christ, meaning "God with us". It's not a piece of music composed by a specific person.
Please provide more context about the "Emmanuel" you are asking about, and I can help you find the composer.