Persichetti Exercise 2 - 56 for Clarinet Duo

I come to you with yet another piece prompted by an exercise from Persichetti's "20th Century Harmony" - Chapter 2:  Scale Materials.  This time the prompt was "11.  Extend the following polymodal and polytonal passage."

I chose to change the instrumentation to Bass Clarinet and Sopranino Clarinet as I thought that increasing the distance between the voices would preserve their individuality.  I also heard the bottom voice as being more in C dorian rather than in G aeolian.  But for the end of the piece I defaulted to a kind of linear cadence rather than ending each voice on its individual tonic.  Thanks for listening and I hope you enjoy and let me know what you think!