Gitchigumee,
I think, sometimes you have to be a member - unfortunately to get presale ticket offers for concerts means a membership level of $500.00 or more, if I'm not mistaken. There're cheaper level of memberships but than the concerts are not included... I only signed up for the newsletter and emails about upcoming events. I do get it once a week, usually on Tuesdays and sometimes they include a presale password... I emailed the box office manager today and asked innocently if I could get this password.... No response so far.
If everything fails, we just need to try different password options. I would think it shouldn't be sooo hard to find out but it takes up some time. And in the meantime all others already bought the best seats