Well, I solved my own ticket need but had to buy a pair so I go from need one to needing to sell one extra!!
I have one extra for sale, behind Stewart in section 125 row 20. Due to the stage set-up, supposedly some of the the seating in the rear-stage area starts at row 16 so this seat is only five rows back according to that information, one section to the side of straight on back. I will need to confirm this with the venue tomorrow, since the box office is not open today but I will post an update when I find out definitively, if that makes a difference. As I said, I've never been there before but I imagine (given the stage set-up at the other shows I've been to and have seen) that this will be a good Stewart-view, especially for the percussion show, at least I sure hope so!!
$50 total for the ticket, I will meet you at the venue and we can do the exchange there...believe me, cheap first-tier seats for this show are not easy to find, cheap singletons in the first-tier nigh impossible!!