Alison Hammond takes the pop-up stage to Edinburgh. A woman sings an Etta James number for the bus driver who left her a handwritten note and drove away, a 22-year-old performs his mum's favourite song, a former soldier sings the Zach Bryan track that helped him through PTSD, and a hospital volunteer sings A Fond Kiss by Robert Burns for a D-Day veteran on his 100th birthday.
Channel 4