The X5 produced digital only album “The 50 Greatest Pieces of Classical Music” by London Philharmonic Orchestra currently holds the number 1 position this week on the classical Billboard chart in the US. The digital only album is a new, cohesive production of the fifty most famous and beloved classical pieces. The album was recorded by London Philharmonic Orchestra in legendary Abbey Road Studios, Royal Festival Hall and Henry Wood Hall in London during September 2009.