"CDs allowed the inclusion of a song in the “pregap” – the space before track one, only accessible by pressing rewind (interestingly, this still cannot be read by computers while uploading tracks today). Ash put their debut single, Jack Names the Planets, in this space on their album 1977; Super Furry Animals put pregap tracks on 1997’s Guerrilla and the 1998 compilation Out Spaced; and Unkle, the James Lavelle/DJ Shadow outfit, inserted a track teeming with samples of their influences on 1998’s influential Psyence Fiction – it would have been difficult to get clearance to use all these pieces."The wikipedia has a list of albums with tracks hidden in the pregap.
Music The Guardian's Jude Rogers lifts the groove on hidden tracks:
Posted on Sunday, January 25, 2015