This song is called "Mailman Bring Me No More Blues" and it is a Buddy Holly song made by him back in 1721 back when cars were in black & white and the wheel was still square. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - A Mailman, bring me no more blues D A Mailman, bring me no more blues E D A One little letter is all I can use - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - That's it! It's a pretty easy and pretty short song so I am guessing that even if you have only 7 fingers you should be able to play it.