This is traditionally known as an Irish fiddle tune. This arrangement goes over the basic melody so you can prepare for the more advanced renditions.
This arrangement adds in a few more 16th notes and slurs to give you a fuller sounding beginner version.
The B section of this tune is one of the most beautiful sections of any tune. With this section, practice holding down each note for as long as possible before moving to the next, as this will create a more legato sound.