Piano/Keyboard beginner help?

ive never heard of playing a song differently in the right hand... maybe it means like playing the accompaniment of the song... cause if your singing and playing the melody notes too you wont hear the keyboard.... look online for music for these songs... some websites you can find songs for free... (just don't do anything illegal or get scammed)... or go to your local music store and they should be able to help you for sure!.... look up in the phone book for music stores if you don't know of any... i hope i helped a little.... sorry i couldn't tell you more...