Sounds like bagpipe practice, eh? (I've got one son that wants to learn. We've already got the chanter.)
Excellent. How old is he?
A couple of cautions, though. First, only about 10% of those who start out actually make it to the pipes themselves (6 months to a year after starting).
Second, get him a teacher! This is critically important, because there are a few aspects of correct piping that just can't be taught from a book. These include the speed and (non-)timing of gracenotes and the various runs of gracenotes, as well as the critical avoidance of "crossing noises." (And I won't even go into the Art of Bagpipe Maintenance -- which includes getting a brand new set into playable condition.)
I heard a self-taught piper once -- it was not a pretty thing. The good news: bagpipe teachers tend to cost less than most other music teachers.
Bands often teach, but tend to teach band style -- rigid in timing, no expression. (Canadian pipers tend to excel at this, but I consider their playing rather mechanical, even if skillful.)
There's another style that appears to have more Gaelic roots that discards our notion of timing for expression. Even though my teacher emphasized expression (on an instrument where you have no control over volume, no sharps or flats, and only 9 notes in all, what can you alter but timing?), to these people my playing would still be rather rigid. (I often won points in competition for "expression.")