The Tarrytown locale lets its "members" get first shot at tickets, with sales to the public several days later. So unless you shell out an extra $45 in advance for the cheapest membership option, the best seats will likely be gone before the public sale of tickets begins. The Easton, PA State Theatre where the Moodies often play has a similar setup.

Edited to add:
Here is link to the membership info; scroll down to the "tickets first" option at the end. They make the membership available immediately, so you would not have to wait for something to come in the mail to get your early buying availability. But you should set up your account with them in advance of the members first sale date which is 3/19 at noon. (Regular sales begin 3/22)

  https://tickets.tarrytownmusichall.org/MemberShipTypeDetail.asp

Edited 1 time by Swindon Sal 03/18/13 07:00:25.