Radio pick of the day

Within minutes of the hottest concerts and sporting fixtures selling out, it's almost guaranteed that someone will be flogging tickets with a huge markup, often online. According to promoters, up to a third of all concert tickets are passing through touts' hands. So who are these entrepreneurial types, how do they operate and what, if anything, should be done about them?

Well, at least one of them is a 15-year-old Nottingham boy called Tom, who regularly earns hundreds of pounds reselling tickets online. He's one of the touts and their customers who talk to Jenna G in the TXU Documentary (2.30pm, 1Xtra). And shame on you if you're thinking of tuning in to get some money-making tips.

Radio 3, meanwhile, is filling a Prom-shaped hole with concerts from the Edinburgh international festival. Performance On 3 (7pm), recorded at the Usher Hall, sees Susanna Mälkki conduct the BBC Scottish Symphony Orchestra in a Stravinsky double bill: music from the ballet Orpheus and a concert performance of the opera Oedipus Rex. Jeffrey Lloyd-Roberts sings the title role, accompanied by Natascha Petrinsky as Oedipus's mother and missus. Providing an English narration is Simon Russell Beale.