[Callers] Challenging Contras

[Bradley Smith via Callers]

Hello all! I'll be calling a session of challenging contras at a dance
weekend next month, and find myself lacking in the aforementioned
challenging contras. I want to keep the session balanced, with a mix of
dances that are mind-bending or heavily technical as well as some dances
that are a step or so below that but that still have something interesting
or unique. Would any of you be so kind as to share some of your favorite
challenging dances? Thank you in advance!