King Tubby (Osbourne Ruddock)

How a Waterhouse repairman turned a mixing desk into an instrument and became the uncredited composer of dub.

The carpenters and engineers who built the sound get little of the credit the record labels keep.

How the B-side and the mixing desk became instruments.

How a Waterhouse engineer turned mixing into an instrument and previewed the remix age.

At Waterhouse and Maxfield Avenue, the mixing engineer stopped being a technician and became an author.

How a one-off acetate became Jamaica's ultimate weapon, and the arena culture that turned selectors and deejays into generals.

In the studios of 1970s Kingston, engineers learned to dismantle a finished song and rebuild it as something stranger, launching the version, the remix and the idea of the producer as author.

From a 1947 shop-front amplifier to King Tubby's workshop, engineers built the sound system before anyone sang through it.

How a London label turned King Tubby's mixing-desk science into a post-punk-era sound of its own.

By the mid-1970s, stripping a reggae master down to drum, bass and echo had stopped being a B-side trick and become an album statement in its own right.