Originally released in 2015, Symphony For the Lost sees British gothic metal pioneers PARADISE LOST performed with an orchestra on September 20, 2014 at the Roman theatre in Plovdiv, Bulgaria. For the one-off concert, the band was joined by the renowned Plovdiv Philharmonic Orchestra founded nearly 70 years ago and made up of over 100 highly qualified musicians. The orchestra has its roots in the hundred-year-old orchestral tradition in Plovdiv and over the years has launched the careers of many world-famous conductors.

Said the band prior to the event: "We have recorded elements of orchestration many times in the studio over the last two decades, as many of our songs lend themselves well to classical arrangement. However, we have never before had the chance to play with a real orchestra in a live situation, so it's very exciting to have the opportunity to play with Plovdiv Philharmonic and in such a prestigious location as the Roman theatre."