Billie Jean by Michael Jackson played on my Yamaha PSR 1500

Trying to play the song Billie Jean by Michael Jackson on my Yamaha PSR 1500 keyboard. The nice Billie Jean style is from the midi and styles website . .. i ve only changed the first three voices to the one i liked more. .. For a nicer sound i ve recorded the lineout audio from the keyboard directly to my Archos AV500 playerrecorder while playing replacing the camera micro audio.