These genres consist of the riddim plus the "voicing" (vocal part) sung by the deejay. The resulting song structure is distinctive in many ways. A given riddim, if popular, may be used in dozens—or even hundreds—of songs, not only in recordings, but also in live performances.
Some classic riddims, such as "Nanny Goat" and "Real Rock" both produced by Clement "Coxsone" Dodd, are essentially the accompaniment tracks of the original 1960s Reggae songs with those names. Since the 1980s, however, riddims started to be originally composed by producers/beatmakers, who give the riddims original names and, typically, contract artists to voice over them. Thus, for example, "Diwali" is the name not of a song, but of a riddim created by Steven "Lenky" Marsden, subsequently used as the basis for several songs, such as Sean Paul's "Get Busy" and Bounty Killer's "Sufferer."
"Riddims are the primary musical building blocks of Jamaican popular songs.... At any given time, ten to fifteen riddims are widely used in Dancehall recordings, but only two or three of these are the now ting (i.e., the latest riddims that everyone must record over if they want to get them played in the dance or on radio).... In Dancehall performing, those whose timing is right on top of the rhythm are said to be riding di riddim.
Riddims are the instrumental backgrounds of Reggae, Lovers Rock, Dub, Ragga, Dancehall, Soca, Bouyon, and also Grime compositions. Also, rare cases in reggaeton, which itself is largely based on the Dem Bow and Poco riddims by Steely & Clevie from the early 1990s, feature a riddim, such as Ivy Queen and Sasha's "Dat Sexy Body", which uses the Bookshelf riddim produced by Tony Kelly of the K-Licious Reggae label.
In other musical contexts, a riddim would be called a groove or beat. In most cases the term riddim is used in reference to the entire background track or rhythm section, but in older Roots riddims, riddim is used to reference a certain bass line and drum pattern. Often a melody is associated with the riddim, and occasionally an artist will produce two different songs with the same riddim (e.g. Elephant Man's "Ele Melody" and "Father Elephant" were both produced using the Kopa riddim, produced by Supa Dups).
Some urban contemporary songs may become riddims as well. The instrumental of Ne-Yo's "Miss Independent" became a popular riddim; many Dancehall artists have recorded songs using the track. Other songs have inspired riddims as well, such as George Michael’s song “Faith", which became a riddim of the same name, The Cure's song "Close to Me", which became The Cure riddim, and R. Kelly’s "Snake", which became the Baghdad riddim. JoJo's "Baby It's You" inspired a Hip Hop fusion riddim in the mid-2000s.
African in origin, investigate Clave and Bell Pattern, riddims can generally be categorised into three types. One of the oldest types of riddim is the classical riddim providing Roots Reggae, Dub, and Lovers Rock with instrumentals, such as Bam Bam, produced by Sly & Robbie.
The third type is the digital riddim, such as Sleng Teng, Punaany Riddim & Duck Riddim produced by King Jammy.
So-called digital riddims refer to riddims created around the time that Jamaican producers incorporated drum machines and synthesizers into Reggae-music production (e.g. Big Stage Riddim - Produced by Penthouse Records) Nowadays, however, most Dancehall and soca riddims are created by electronic instruments, so, in essence, almost all are digital.
A number of riddims take their name and influence from African-Jamaican religious drumming such as the Kumina riddim, created in 2002 by Sly and Robbie, and Burru.
Different producers often develop their own versions of the same riddim, such as the Punaany riddim, which has distinct versions crafted by Steely & Clevie and by Ward 21, the Buzz Riddim, which was produced by Troyton Rami & Roger Mackenzie and officially launched Dancehall Rapper Sean Paul into superstardom ("Gimme The Light" from the Buzz Riddim won them their first Grammy for Best Reggae Album). Different artists often perform on top of the same riddims with different lyrics and different vocal styles, ranging from singing to toasting. As an example, Beenie Man's song "My Wish", Mr. Vegas' song "Go Up", and T.O.K.'s "Man a Bad Man" are all based on the Juice riddim. Many riddims are named after the song that was recorded on that instrumental track for the first time (or, in some cases, the song that becomes the most popular on a given riddim). For example, the Satta Massagana riddim is named after The Abyssinians' original song "Satta Massagana."
Notable producers include:-
Bobby "Digital" Dixon
Steven "Lenky" Marsden
Henry "Junjo" Lawes
Steely & Clevie
Bost & Bim