usually you would play this along with a guitar or whatever

u wait 2 measures or 8 beats

|---13---11---9---8|
|------------------|  x2  (whole notes/ 4 beats)
|------------------|
|------------------|  


|--13-13-13-13-|
|--------------|    x4   dah dahdah dah
|--------------|
|--------------|   



|-16-15-16-13-|
|-------------|     x7   dah dahdee dah
|-------------|
|-------------|


you can repeat for however long you want

Merry Christmas