Phillip is your standard example of a teenager, with all the troubles that accompany such a period of a human's life. Puberty, dating, school and trying to fix that annoying little sound his guitar every now and then, without having to pay for new strings.
Of course, it's just when our little musician finds himself ready to strike at least one of those issues off of his list, he finds himself being put at bat against the universe as he finds himself diving head first into a minefield of colourful ponies, emotions and more than a few rumors regarding his arrival on land known as Equestria.