I am the same blind person who posted a while ago. I have been able to download a lot of Rick Steve's material that reads well on my I Pad. I have been searching the web for easy way to buy concert tickets for Vienna and Salzbur for the second half of May. A lot of the web sites are hard to navigate using a screen reader. Please tell me about sites you have found that are very simple to use. Simple clearer sites work better with speech. Remember, I cannot use a mouse so I need keyboard commands and labeled links.
Classictic is a German ticket agent. http://www.classictic.com/en/advantages/hotline/
I don't know how easy it is to navigate, but they do have a hotline phone number. Just ask for an English speaking rep. They cover all major European Classical music venues, and have all the schedules in their data base. From the US: 011-49-30-86-87-04-12-60