Technology often supports blind and visually impaired people to achieve independence. However, the process can also work in reverse - hindering rather than helping. We speak to listeners about their experience of booking to see their favourite acts using Ticketmaster.

And is an update to an app always good news? Maybe not if you're a blind user of Sonos speakers. We look at what's caused the upset and hear what Sonos is doing to put things right.

Presenter: Peter White

Website image description: Peter White sits smiling in the centre of the image and he is wearing a dark green jumper. Above Peter's head is the BBC logo (three separate white squares house each of the three letters). Bottom centre and overlaying the image are the words "In Touch" and the Radio 4 logo (the word Radio in a bold white font, with the number 4 inside a white circle). The background is a bright mid-blue with two rectangles angled diagonally to the right. Both are behind Peter, one is a darker blue and the other is a lighter blue.