How could I present my song composition to a publisher?

Answer 1

GEt a demo tape. This doesn't mean that YOU should sing the song. Find someone who has a good voice and good singing skills and get them to record the demo.

Then begin to send them to music companies around the world. You can also send to singers who may want to buy your song. When doing this, it's best to send the tape REGISTERED or CERTIFIED which gives you proof that you sent the song to them.