Today the remix and dub version are commonplace in popular music; less widely appreciated is the fact that these techniques were pioneered in a tiny studio a Kingston, Jamaica district called Waterhouse. That pioneer of dub was an electronics engineer and sound system operator named Osbourne Ruddock, but to the crowds who flocked to his dances, and the countless singers and record producers who utilised his skills, he was known as King Tubby. [...]
see also :Scientist, a disciple of Tubby and Augustus Pablo "King Tubby Meets Rockers Uptown". A great introduction to King Tubby, would be the 1973 stereo dub album 'Blackboard Jungle'.
[...] Tubby began what seemed to be a deceptively simple bit of experimentation: he would remix songs starting by dropping the vocal track, boosting parts of the instrumental track (e.g., suddenly there would be nothing but bass or rhythm guitar), and add subtle effects like echo or delay to the instruments he had isolated. -- John Dougan