How the Beatles' 'Tomorrow Never Knows' Got Its Psychedelic Sound
When John Lennon wanted to pursue an outlandish vocal sound for the Beatles song “Tomorrow Never Knows,” it presented young engineer Geoff Emerick with the chance to show off what he could do.
The sessions for the group's 1966 album Revolver were Emerick's first interactions with the Beatles. The band decided to give up trying to record music it could perform live and instead explore the full potential of the studio environment, as the late Emerick once told Uncle Joe Benson on the Ultimate Classic Rock Nights radio show.
“We started doing ‘Tomorrow Never Knows,'and John wants this magical Dali Lama vocal sound,” he said. “And there’s the revolving speaker, the Leslie speaker from the Hammond organ. So, ‘Wow, let’s put John’s voice through that!’”
Source: ultimateclassicrock.com