How do I get the right score on my keyboard

[Ton Velden]

Hello music friends, When I open a midi song with notation music I become a lot of chanels. Mostly there is a chanel named Vocal line. How can I make that this chanel comes on the score from my keyboard, a Tyros 4, so that I can play the melodyline by using the score on my keyboard.Thanks for helping me. Ton van der Velden