Whoever made the Seattle Symphony app spent their entire budget on high-res graphics and selecting just the "right" shave of magenta, leaving nothing for implementing the sort of functionality and usability needed in such an app. The performance is sluggish, the back button often fails to work, scrolling is often wrongly registered as a tap, and when you do manage to go back to what you were scrolling through, after the spinner finishes (caching, people!) you get back to the top of the list instead of where you were.
Purchasing tickets is less than even an afterthought. Tickets are listed with words ("Founders Tier", "Orchestra B", etc.), with no indication of where in the auditorium those sections are. Furthermore, there seems to be no ability to actually choose which seats in these mysterious section my tickets apply to!
This app is nothing more than a cruel joke. If I could give it zero stars, I would.