Pi Day

On March fourteenth, the day of pi I pined to buy an apple pie A python spied me at the door, a sharp-eyed pirate on the floor Oh piebald pipe of piety Do not aspire to piracy! A spiny pain will occupy My poor pylorus pining pie Pied piper pyromaniac Porkpie in hand, applies attack A pyrite spark to light became Papyrus lit and fanned the flame The python backs, afraid of fire The piker fears a funeral pyre He'd be expired and unprepared To cipher circles pi r squared Our pineal glands made pie-eyed plans And Pontius Pilate washed his hands A pile of pilots can't deny I occupied my day with pi October 25, 2014 Rhymed iambic tetrameter There are 35 "pi" sounds. Can you find them all?