Seriously...

Is everyone in the world really connected by only six links?A famous experiment by social psychologist Stanley Milgram in the 1960s claimed that it took on average only six steps for a message to pass between two strangers in America. Since then the idea has become part of popular culture. But is it true? And if so, does it matter? Julia Hobsbawm investigates how social networks work, whether we should all pay more attention to our network connections, and whether governments can use social networks to promote - for instance - messages about health. Maybe, she discovers, it's not the six degrees of separation that matter, but the three degrees of influence.

Stuart Barr uncovers the colourful career of British composer and transgender pioneer, Angela Morley.In 1972, Wally Stott's transition to Angela Morley made front page news. Wally was famous. He was composer for the Goon Show and Hancock's Half Hour, and music director to stars like Frankie Vaughan and Shirley Bassey. "TV Music Man changes his sex" screamed the headlines. Where would Angela go from here? Stuart talks to Angela's friends and colleagues to discover how she made her mark in the music business, as a woman and a man. And he explores the special qualities of the music she wrote and arranged, from the famous 'Hancock' tuba theme to her work alongside John Williams on blockbusters like Star Wars and Superman.

Ethan was born blind. He's now a 10 year-old boy who collects sounds on his 51 dictaphones, composes music, and performs on stage in concerts. Until now he's been home-schooled, but last year he was offered a place at St Mary's Music School in Scotland - one of the best in the country. The problem is he struggles to get around. This is where Batman comes in. His real name is Daniel Kish and like Ethan he's blind. He's a master of echolocation. He makes clicking noises - like a bat - to build a picture of the world around him. Neuroscientists have done experiments on him and found that he's managed to activate the visual part of his brain. He's taught people all over the world to "see through sound" and he's so good at it that he goes hiking, cycling and rock-climbing. "Batman" (Daniel) comes to Scotland to spend 10 days with Ethan, to teach him echolocation and help him prepare for his new school. The documentary follows Ethan's progress as he learns from Daniel Kish. Listeners are introduced to the principles of echolocation, they follow Ethan practicing at home, on the train and at his new school. They're brought into Ethan's world, through music composed specially by Ethan, and they're with him on his birthday, on long walks in the Scottish hills, right through to his experience at school. We follow Ethan up to his final day of term to find out how he's done, and see how he copes with his biggest challenge yet: playing an accordion solo with the orchestra at the school concert. Produced and presented by Helena Merriman.

"Your breasts look fantastic in that dress." From abysmal chat-up lines like this, to love at first sight in Victoria Train Station, BBC Radio Four listeners have some incredible relationship stories. Reaction Time broadcasts them to the nation, in a programme composed entirely of smartphone contributions from the public. BBC Radio Four shouted out for stories about love on social media - gave out the reactiontime@bbc.co.uk email address and received poignant, funny and downright odd tales - which have been crafted into a half-hour of dreadful dates, poignant memories and one incredible relationship that begins with a heart attack. Contributors simply recorded their two minute stories on their phone recorders - and emailed the sound file in. The contributor Narelle Lancaster, was called back and asked to record the script over her phone - so it's 100% listeners in a programme made on phones - a new way of creating a programme, and a unique platform for the wit and inventiveness of the BBC Radio 4 audience. Presented by Narelle Lancaster Produced by Kevin Core.

The writing of Carson McCullers has perhaps never been as popular or acclaimed as that of contemporaries such as Harper Lee and Tennessee Williams, but nonetheless she remains one of the most remarkable and individual writers to come out of twentieth century America. She only wrote a few works, in large part because rheumatic fever left her paralysed in her left arm, and she was beset by ill health and alcoholism for many of her fifty years. Her writing style was enormously sensuous, filled with the heat, sounds and smells of the American south, and the characters who populated books like 'The Ballad of the Sad Cafe', 'The Heart is a Lonely Hunter' and 'A Member of the Wedding' were most commonly troubled misfits. Her personal life was similarly idiosyncratic - the man she married twice committed suicide having tried to get her to do the same - though it is her very particular writing style, with a strong musicality drawn from the years she spent training as a classical pianist, that has made many of her fans so vociferous in their attachment to her. Jarvis Cocker hears from a number of them, including academic Carlos Dews, author Laura Barton and musician Suzanne Vega, who has not only written and starred in three versions of a play about Carson, but often feels herself to be in conversation with her spirit. Jarvis explains his own personal devotion, explaining how Carson's ability to bypass the brain and connect straight to the heart is what makes her such an important figure to him.

Why is homosexuality still illegal in the world's so-called largest democracy? In his celebrated family memoir 'And All is Said', historian Dr Zareer Masani made no bones about his own homosexuality and the problems it posed growing up in the India of the 1950s and '60s. Much seemed to have changed in the intervening half century. But with a renewed Hindu nationalism dominant in both political and cultural life, Zareer returns to Mumbai (formerly Bombay) to find out whether growing acceptance of gay rights is being put in reverse. Attempts were made in the recent past to overthrow an old colonial law making homosexuality a crime punishable by life imprisonment. The Delhi High Court held that this section of India's criminal law was unconstitutional; but that decision was overturned by India's Supreme Court two years ago. Zareer asks Justice Shah, who gave the earlier, landmark judgement decriminalising homosexuality, whether its liberal impact can really be reversed. He talks to the various gay and lesbian groups who are active in Mumbai, and to prominent, openly gay individuals like Mr Gay India 2014. Zareer returns to Bombay's elite Anglican school where he once suffered homophobic bullying. And he spends a day with the amazing Humsafar Trust, that provides everything from HIV treatment to counselling and legal advocacy for LGBT men and women outside Bombay's affluent, liberal middle class bubble. In his youth, Zareer found it impossible to live an openly gay life in the country of his birth. This programme is his journey back home to find out whether the liberalisation he's observed during his lifetime has now been halted by the moral policing of governments and religious extremists. Producer: Tom Alban.

In 1915 women could neither vote, divorce nor work after marriage, yet in that same year the American writer Charlotte Perkins Gilman envisaged a revolutionary world populated entirely by women who were intelligent, resourceful and brave. Her great science fiction novel Herland tells the story of three men who crash land on an island where the men have died out; women reproduce by parthenogenesis.Until Gilman's book was published, most visions of utopia, though turning the world on its head, struggled to envisage a place where gender had changed. Fantastical machines could be imagined alongside marvellous advances in medicine and technology, but the idea of woman functioning fully in the new utopias was too much for many to imagine.In this programme the award winning science fiction writer Geoff Ryman uses Herland as a starting point to ask why it's been so had to imagine a world where gender dissolves. In the course of the programme he will write his own short story, avoiding the pitfalls that have skewered many before him. The story No Point Talking is included in the podcast.Presenter: Geoff Ryman Producer: Nicola Swords Contributors: Stephanie Saulter, author of the Evolution Trilogy; Laurie Penny, writer and journalist; Dr Sari Edelstein, The President of the Charlotte Perkins Gilman Society; Sarah Le Fanu, former Senior Editor at The Women's Press; Dr Caitríona Ní Dhúill, author of Sex and Imagined Spaces; Sarah Hall, author of The Carhullan Army and The Wolf Border Original music composed by Scanner.

For the past few decades music teacher and pianist Francesco Lotoro has been collecting music written in concentration camps from the Second World War. Francesco's life is entirely given over to recovering the creations of composers and performers, many of them Jewish, who died in the camps. A massive amount of music was written in camps. Classical music by established composers, but also songs, symphonies, sonatas, operas, lullabies, jazz riffs often scribbled on old sacks, toilet paper or scratched into mess tins. Francesco has discovered works by important composers as Hans Krasa, the Czech creator of the masterpiece 'Brundibar', as well as Viktor Ullmann and Gideon Klein - all killed by the Nazis in 1944, but writing music until the very end. Composer Adam Gorb is head of composition at the Royal Northern College of Music in Manchester. Working closely with the BBC Philharmonic, Adam travels to Italy to meet Francesco and together they pick through his 8000 piece archive, much of which has never been heard before. In this special documentary, which broadcasts in the days running up to Holocaust Memorial Day, Adam Gorb returns to Britain with a piece of unfinished music written by Viktor Ullman before his death. This piece will be performed by the Philharmonic for the first time. Producer: Caitlin Smith.

What is it really like to make decisions affecting millions of people, knowing that a mistake might be pounced upon instantly and your career left in tatters? Government ministers face this challenge every day, and now under ever-rising pressures - not just 24 hour news, but also hugely influential social media and far stronger demand for more open and accountable decision-making. Elinor Goodman finds out from senior politicians, civil service leaders and their advisors how government ministers make decisions in the face of growing pressure from this instant all-pervasive information culture. How is the quality of decision-making affected when the demands for faster and more transparent policy-making become impossible to resist? As information circulates ever faster, can ministers actually keep up and make good decisions rather than succumb to the demands for swifter ones? Where once there was just a news cycle to manage, now there is a need for instant replies to all manner of questions and challenges about the detail and purpose of policies themselves - and sometimes this happens before the policy has actually been finalised. David Cameron leads a government that can only dream of the time and space afforded to his political hero Harold Macmillan, who was able to take weeks deliberating on subjects which today's PM must sometimes resolve in minutes. So, what are the pressures and processes that contribute to ministerial decision-making in the 21st century? Producer: Jonathan Brunert.

Many of us have grown up with the belief that a strong work ethic is a positive thing, and that by contrast idle hands are the devil's playthings. According to Professor Andrew Hussey, that argument makes very little sense. Starting off with a line from the Cilla Black song 'Work is a Four Letter Word' he offers a powerful counter-argument by navigating the ideas of, among others, Bertrand Russell, John Ruskin and the Situationists in France, whose graffiti slogan 'Ne Travaillez Jamais' - never work - still appears regularly on Parisian streets. Hussey argues that the corporate culture in particular, born out of mid-20th Century America and built upon ideologies of work developed during the industrial revolution and on through to the development of the assembly line, can have a hugely corrosive impact on people's lives. The programme features the voices of workers from the 1930s through to the present day, describing working life in call centres where even a trip to the toilet is timed by management. Hussey doesn't however suggest that we all take to the sofa to watch TV and eat crisps, though; instead he argues that by taking control of the work we do and the way we do it, work can actually become a positive force in our lives, once stripped of what he regards as the caustic power of modern managerialism.