"PETER PIPER" nursery rhyme

This is for you to practice the sound of /p/ - notice the "air" exploding between the lips.

notice the difference between : "pack"  and "peck"   measure (

1. In Great Britain the peck may be used for either liquid or dry measure and is equal to 8 imperial quarts (2 imperial gallons), or one-fourth imperial bushel, or 554.84 cubic inches (9.092 litres). The peck has been in use since the early 14th century, when it was introduced as a measure for flour.)

Peter Piper picked a peck of pickled peppers
Peter Piper picked a peck of pickled peppers
If Peter Piper picked a peck of pickled peppers
Where's the peck of pickled peppers Peter Piper picked