Since tickets to the Memorial Day music festival Sasquatch! sold out in February, we’re turning our attention to the close of the summer instead. A limited number of Bumbershoot (Sept 3-5) member tickets went on sale Tuesday, March 15, which sounds fairly nose-in-the-air exclusive until you learn that “membership” just requires an email address.

Sign up at bumbershoot.org for access to $75 three-day passes and $29 single “any-day” tickets. Once the Insider Deal sells out, three-day passes go up to $90, and $35 single-day tickets will go on sale when the lineup is announced later this spring.

A few things to note:

Nonprofit One Reel, which puts on the festival, says that Bumbershoot will return to its traditional sales structure (one ticket gets you into everything) after last year’s experiment with “economy” tickets (everything but the mainstage) didn’t go so well. Attendance dropped to an average of 35,000 per day from 50,000, which One Reel blamed on the bad weather and tiered ticketing.

Meanwhile, the mainstage—home to headliners Bob Dylan, Mary J. Blige, Weezer, and Hole in 2010—will move indoors (and out of the rain) to KeyArena. As much as we’ll miss the roomier outdoor Memorial Stadium (capacity 22,000 versus the arena’s 14,000), the triumvirate of having a seat, being able to buy beer, and not getting drenched is enticing. We’re looking into how seating works with a first-come, first-served ticket. Sounds chaotic.

Bumbershoot is also teaming up with Decibel Festival to bring local and national electronic acts to EMP’s Sky Church. Check back on Culture Fiend periodically for updates.

Bumbershoot is a three-day music and arts festival that runs from Sept 3-5 at Seattle Center.