The riddim as database

Elsewhere a backing track belongs to the song built on it. In Jamaica the rhythm has its own name, its own history and its own catalogue of tenants: Stalag, Real Rock, Sleng Teng and Diwali have each carried scores of different records across decades. Knowing which riddim a song sits on tells you who it is arguing with.

A rhythm with a name

In most popular music the backing track belongs to the song. Somebody writes a tune, a band records something underneath it, and that arrangement exists to serve that one record. Jamaica works the other way round. The rhythm track — the riddim — is the durable object. It has a name of its own, a date, a studio, a set of musicians, and a growing list of songs that have been voiced on top of it, sometimes across fifty years.

This has a practical origin. Once producers began issuing instrumental versions on the B-sides of singles in the late 1960s, a rhythm was plainly reusable, and studio time was expensive while a tape that already worked was free. Recutting a proven rhythm with a new singer was the cheapest way to make a record that might sell. What began as thrift hardened into the organising principle of the entire music.

Four addresses

"Real Rock", cut by the Sound Dimension at Studio One in 1967, is among the most versioned rhythms ever recorded, its rolling piano and bass turning up under roots singers, dancehall deejays and British jungle records alike. Its Studio One stablemate "Full Up" carried Musical Youth's "Pass the Dutchie" to the top of the British chart in 1982, fifteen years after the session that made it.

"Stalag", built on the instrumental Ansel Collins cut in 1973 for the producer Winston Riley, who controlled it thereafter, has one of the longest tenant lists in the music. Sister Nancy's "Bam Bam" was voiced on it in 1982, borrowing its hook from a Maytals song of 1966 and going on to be sampled by artists far outside reggae; Tenor Saw's "Ring the Alarm" followed in 1985. Two of the most recognisable records in Jamaican music share an address.

"Sleng Teng", assembled at King Jammy's in 1985 from a preset on a small Casio keyboard for Wayne Smith, is the clearest demonstration of how fast the system can move. Versions appeared by the dozen within months and have never really stopped. A rhythm that cost almost nothing to make became the founding document of digital dancehall.

"Diwali", built by Steven "Lenky" Marsden in 2002 around a handclap pattern, shows the model still working at global scale. Sean Paul's "Get Busy" and Wayne Wonder's "No Letting Go" both sit on it, and both were international hits in the same stretch of months. Listeners who had never heard the word riddim were hearing two versions of one on the same radio station.

Knowing which riddim a record sits on tells you what it is answering.

Why it behaves like an index

Because the rhythm is stable and the vocals are not, a riddim accumulates a record of what people wanted to say at different moments. Line up the versions of one rhythm in date order and you can watch the subject matter shift from roots devotion to dancehall boast to lovers' complaint, with the bass line unmoved underneath. No other filing system in popular music does this.

It also makes records legible to each other. A deejay voicing a new cut of a famous rhythm is speaking to everyone who voiced it before, and an audience that knows the rhythm hears the comparison whether or not it is invited. The riddim supplies the common ground that makes a boast, a rebuke or a tribute land.

From the 1990s the industry formalised it. A producer would build a rhythm, voice fifteen or twenty artists on it over a few weeks and release the results together as a one-rhythm album, so the comparison the dance had always made informally became the product itself. Dave Kelly's Madhouse and the partnership of Steely and Clevie ran this model at speed, and it remains how a new dancehall rhythm is introduced.

Who owns an address

The obvious problem is credit. The players who cut a rhythm in an afternoon for a session fee in 1967 created something that has generated income for six decades, almost none of it theirs. Ownership generally attached to the producer who paid for the session, and disputes over who may licence a foundation rhythm have run through the courts in Jamaica, Britain and the United States. The version economy is extraordinarily generative and has never distributed its proceeds well.

For anyone trying to read the archive, though, the riddim is the most useful handle there is. It connects a 1967 studio band to a 2002 pop hit without inventing a lineage, because the connection is literal — the same recording, or a deliberate recut of it. Follow the rhythms and the map draws itself.