When Jamaican recording engineers Osbourne "King Tubby" Ruddock, Errol Thompson, and Lee "Scratch" Perry began crafting "dub" music in the early 1970s, they were initiating a musical revolution that continues to have worldwide influence. Dub is a sub-genre of Jamaican reggae that flourished during reggae's "golden age" of the late 1960s through the early 1980s. Dub involves remixing existing recordings--electronically improvising sound effects and altering vocal tracks--to create its...