Technique Duets for Spicing up Flute Lessons

Hello Flute Teachers,

In my last blog entry I mentioned that if any of us has the flare to write duets to go with standard scale and arpeggio exercises, then they make flute lessons MUCH more musical.
I promised to put up a few samples from my book "The Magic Flute" and here they are:

Technique Duets with PDF sampler page and MP3s to listen to.

Happy listening, and please put comments below, or add ideas/share your own.
Thanks,
Jen Cluff