This popular piece is taken from The Notebook For Anna Magdalena Bach, dating to 1725. The pieces in the book were generally student level ones, compiled by the Bach family.
This Minuet had been attributed to J.S. Bach until the 1970s, when it was credited to Christian Petzold. There are many guitar arrangements and this one tries to be as accurate as possible to the original keyboard score.
The lesson walks through the two sections, and touches a bit on locating notes higher up the neck of the guitar.