Stuck in a Joy Loop

Michael Tippett's Second Symphony, the presto. There is this thing that happens at 2:30. This recording is a little fast for me; I prefer Tippett's own version with the BBC Symphony Orchestra. But you'll see there are these three riffs that jam into one another in an amazing way.

It's a little known fact, however, that my dad started this band (Bournemouth) back some ago...