Dub

Dub is reggae instrumentals ("versions") radically remixed at the console, usually with vocals reduced to fragments or removed entirely. The defining gestures are deep spring reverb on snare hits, tape-delay echoes that feed back into themselves, abrupt drops where instruments vanish for several bars and reenter, and high-pass / low-pass filter sweeps. Bass is foregrounded — often the loudest element — while drums sound enormous and isolated. Tempos match reggae (70-90 BPM) and the underlying rhythms are usually one-drop or rockers patterns. There is rarely a song structure in the conventional sense; dub mixes evolve through addition and subtraction rather than verse-chorus.

Dub was invented at Treasure Isle and King Tubby's studios in Kingston in the early 1970s. Engineer Osbourne "King Tubby" Ruddock and producer Lee "Scratch" Perry are usually credited as co-founders: Tubby for treating the mixing board as a performance instrument with custom-modified faders and a unique high-pass filter, Perry for treating the studio (Black Ark, opened 1973) as a sonic laboratory. The 1973-78 period produced the classic dub catalog — King Tubby Meets Rockers Uptown (1976, with Augustus Pablo), Perry's Super Ape (1976). Dub's influence runs through post-punk, on-U Sound's UK output (Adrian Sherwood), Bristol trip-hop, jungle, dubstep, and contemporary techno's use of space and delay.

Listen for the moment everything except bass and drums disappears, then comes back one element at a time — that's the core dub gesture. Snare hits trail off into long reverb tails; vocal phrases get cut off mid-word and echo into nothing. The bass guitar tone is huge, often distorted, and frequently the most melodic element. Tape delay's pitch wobbles slightly as the tape stretches — that wobble is part of the texture, not a flaw.

Augustus Pablo and King Tubby's "King Tubby Meets Rockers Uptown" (1976) — both the single and the album of the same name — is the standard reference. Lee Perry's Super Ape (1976) is the other essential record.

King Tubby's mixing board was a hand-modified MCI console; he physically rewired its high-pass filter so it could be swept by a fader during a mix, which is essentially the first performance-oriented mixing desk control and prefigures the modern DJ's filter knob by decades.