In London , the Troubadour at Earl 's Court , where Bob Dylan , Paul Simon , Sandy Denny and Martin Carthy sang , became a poetry club in the 1990s .
Is now a folk club again .
In London , the Troubadour at Earl 's Court , where Bob Dylan , Paul Simon , Sandy Denny and Martin Carthy sang , became a poetry club in the 1990s , but is now a folk club again .