Triggered ticket offer email with an A/B split?

I've been asked to create a triggered email with an A/B split and I'm not sure if that's possible in Wordfly and I'm looking for any ideas on whether it can be done.

I've done regular triggered emails with just one list of patrons getting one message. We have a concert this weekend and we want half the Friday audience to get a message for an upcoming classical concert and the half to get a message for an upcoming Pops concert.

Any one done this before?

Thanks,
Melissa 

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