On March 1 1973 a long haired British four-piece released their 8th album. Having previously attracted a countercultural and largely male, drug infused following, Dark Side of the Moon would propel Pink Floyd into global stadiums and the bedrooms of teens and students from Middle America to Milton Keynes. 

While the band enjoyed extraordinary mainstream success for the next three decades, something bizarre and esoteric was happening to their breakthrough record. People were turning down the volume on the pre-war technicolor classic The Wizard of Oz and playing Dark Side of the Moon instead. Surreal coincidences were seen and heard: 

lyrics uncannily chimed with on screen appearances from the lead characters, improvised solos rose and fell with the action, and new tracks synchronised perfectly with changes in cinematic chapters. 

Ever since I witnessed the phenomenon as a student in the year 2000 I’ve wanted to get to the bottom of the mystery. While Pink Floyd have repeatedly denied any connection, the coincidences have always felt too perfect to be excused as celestial serendipity.