Several highly respected OEM and third party sample libraries were developed for the Emulator II, including a multitude of high quality orchestral sounds. Many of the EII's original library sounds were sampled from the more expensive Fairlight and Synclavier workstations (the Fairlight's famous "Sarrar/Arr1" choir sample is called "DigiVcs" in the E-mu library). This can cause confusion when trying to determine which sampler hardware was actually used on a certain song. A demo of the library sounds can be found on YouTube. Famous samples include the Shakuhachi flute used by Peter Gabriel on "Sledgehammer" and by Enigma on their album "MCMXC a.D.", and the Marcato Strings heard on many popular '80s records, including the Pet Shop Boys' "West End Girls". According to the Pet Shop Boys' Neil Tennant in "Synth Britannia" on BBC 4 in 2009, every single sound on the track, with the obvious exception of the singers' voices, was made using an Emulator II.