This American singer-songwriter is known throughout the world thanks to the fact that his songs ‘Passion Play’ and ‘Please Don’t Go’ were included on ‘Grey’s Anatomy’ soundtrack, but his musical talent is by no means restricted to the small screen. It’s no surprise that his work is compared to such icons as Iron & Wine, Sufjan Stevens and Elliott Smith, because William Fitzsimmons is a walking masterclass in the finest indie folk being produced in the USA today. His first albums, ‘Until When We Are Ghosts’ (2005) and ‘Goodnight’ (2006), were self-produced efforts, and Fitzsimmons didn’t go into a studio as such until he was ready to make ‘The Sparrow and the Crow’ in 2008. This year, the prolific artist with the gentle voice and melancholy yet uplifting songs released ‘Charleroi’. Festival Grec presents him tonight at sala Barts.