Sarah Tynan is one of English National Opera's great success stories, emerging from their Young Artist's programme to blossom in a succession of lyric soprano roles that only the super-talented can make truly distinctive.

As Neil Fisher put it in The Times: "There is one blue-chip investment at ENO plc that has consistently outperformed the market." Tynan was born and bred in Walthamstow and knows better than most how massively overpopulated her particular fach is. To succeed, as she has, in the operatic realms of the pert and pretty and wholesome you need to offer something credible and real on stage.

Her characters have ranged from a deliciously air-headed and vain Yum-Yum in The Mikado to a bold and heartbreaking portrayal of the "sacrificial lamb" Iphis in Katie Mitchell's extraordinary staging of Handel's Jephtha.

In this exclusive audio podcast "ENO Talks" she takes a break from rehearsing for the first revival of Jonathan Miller's American mid-West setting of Donizetti's The Elixir of Love downing tools at Adina's Diner to chat to Edward Seckerson about what drives her.

She, of course, talks about surviving ENO's critically mauled production of Kismet (she really shone in it) revealing that there might just have been a 'West End girl' lurking behind that operatic exterior.