The Roland CompuRhythm CR-78 is a

drum machine A drum machine is an electronic musical instrument that creates percussion sounds, drum beats, and patterns. Drum machines may imitate drum kits or other percussion instruments, or produce unique sounds, such as synthesized electronic tones. A d ...

manufactured by

Roland Corporation is a Japanese multinational manufacturer of electronic musical instruments, electronic equipment, and software. It was founded by Ikutaro Kakehashi in Osaka on 18 April 1972. In 2005, its headquarters relocated to Hamamatsu in Shizuoka Prefect ...

that was released in 1978. Although primitive by later standards, the CR-78 represented an important advance in drum machine technology at the time, in particular by allowing users to program and store their own drum patterns. The wood effect cabinet and preset rhythms of the CR-78 such as ''Waltz'', ''Bossa Nova'' and ''Rhumba'' suggest that it was seen by its designers as primarily an accompaniment for an

electric organ An electric organ, also known as electronic organ, is an electronic keyboard instrument which was derived from the harmonium, pipe organ and theatre organ. Originally designed to imitate their sound, or orchestral sounds, it has since develop ...

, but the CR-78 became a popular instrument with new wave musicians in the late 1970s and early 1980s.

Operation

The CR-78 uses analog drum voices that sound very little like real percussion instruments. The unit also incorporates an

NEC is a Japanese multinational information technology and electronics corporation, headquartered at the NEC Supertower in Minato, Tokyo, Japan. It provides IT and network solutions, including cloud computing, artificial intelligence (AI), Inte ...

UPD8048C-015

microcontroller A microcontroller (MC, uC, or μC) or microcontroller unit (MCU) is a small computer on a single integrated circuit. A microcontroller contains one or more CPUs (processor cores) along with memory and programmable input/output peripherals. Pro ...

CPU (NEC) uPD8048C-015 8-bits (a clone of the Intel 8048) to provide digital control of its functions. Previous Roland drum machines had offered only a selection of preset rhythms. The CR-78's key new feature at the time of its introduction was that in addition to offering 34 preset rhythms, it provided four programmable memory locations for storing patterns created by the user. These can be created by using step programming with the WS-1 box, which was available as an optional extra. The four user patterns are stored in

RAM Ram, ram, or RAM most commonly refers to: * A male sheep * Random-access memory, computer memory * Ram Trucks, US, since 2009 ** List of vehicles named Dodge Ram, trucks and vans ** Ram Pickup, produced by Ram Trucks Ram, ram, or RAM may also ref ...

; when the CR-78 is switched off, the contents of the RAM are maintained by a NiCd rechargeable battery. The CR-78's front panel allows the user to customize the preset rhythms by altering the volume balance between bass and treble sounds, canceling some sounds altogether, and adding "metallic beat" (three filtered square waves that create a distinctive chime

timbre In music, timbre (), also known as tone color or tone quality (from psychoacoustics), is the perceived sound of a musical note, sound or tone. Timbre distinguishes sounds according to their source, such as choir voices and musical instrument ...

). Many of the preset rhythms have a memorable character, and the ability to manipulate them further made the CR-78 a versatile instrument. No digital control of tempo is provided on the front panel, with only an analog knob for tempo control. However, the CR-78 accepts an external V-trig clock, allowing a control voltage to be fed in from another device such as a

music sequencer A music sequencer (or audio sequencer or simply sequencer) is a device or application software that can record, edit, or play back music, by handling Musical note, note and performance information in several forms, typically CV/Gate, MIDI, or Open ...

. A selection of preset fills and rhythm variations are also available, either to trigger manually, or automatically every 2, 4, 8 or 16 bars. Roland also produced a simpler drum machine, the CompuRhythm CR-68. This was essentially the same as the CR-78, but without programmable patterns or the ability to fade drum sounds in and out. A large cabinet version, the CompuRhythm CR-800, with capabilities between the CR-68 and CR-78, was also produced. At the same time Roland also sold the TR-66, a smaller unit that offered fewer preset rhythms and no programmability.

Sounds and rhythms

The CR-78's built-in rhythm sounds were a further development of those available on the earlier Roland Rhythm 33, 55 and 77 machines. The analog percussion voices consist of

bass drum The bass drum is a large drum that produces a note of low definite or indefinite pitch. The instrument is typically cylindrical, with the drum's diameter usually greater than its depth, with a struck head at both ends of the cylinder. The head ...

snare drum The snare drum (or side drum) is a percussion instrument that produces a sharp staccato sound when the head is struck with a drum stick, due to the use of a series of stiff wires held under tension against the lower skin. Snare drums are often u ...

, rim shot,

hi-hat A hi-hat (hihat, high-hat, etc.) is a combination of two cymbals and a pedal, all mounted on a metal stand. It is a part of the standard drum kit used by drummers in many styles of music including rock music, rock, popular music, pop, jazz, an ...

cymbal A cymbal is a common percussion instrument. Often used in pairs, cymbals consist of thin, normally round plates of various alloys. The majority of cymbals are of indefinite pitch, although small disc-shaped cymbals based on ancient designs sou ...

maracas A maraca ( , , ), sometimes called shaker or chac-chac, is a rattle which appears in many genres of Caribbean and Latin music. It is shaken by a handle and usually played as part of a pair. Maracas, also known as tamaracas, were rattles of d ...

claves Claves (; ) are a percussion instrument consisting of a pair of short, wooden sticks about 20–25 centimeters (8–10 inches) long and about 2.5 centimeters (1 inch) in diameter. Although traditionally made of wood (typically rosewood, ebony ...

cowbell A cowbell (or cow bell) is a bell (instrument), bell worn around the neck of free-roaming livestock so herders can keep track of an animal via the sound of the bell when the animal is grazing out of view in hilly landscapes or vast plains. ...

, high bongo, low bongo, low

conga The conga, also known as tumbadora, is a tall, narrow, single-headed drum from Cuba. Congas are staved like barrels and classified into three types: quinto (lead drum, highest), tres dos or tres golpes (middle), and tumba or salidor (lowest ...

tambourine The tambourine is a musical instrument in the percussion family consisting of a frame, often of wood or plastic, with pairs of small metal jingles, called "zills". Classically the term tambourine denotes an instrument with a drumhead, thoug ...

, guiro, and "metallic beat" (an accent that could be overlaid on the hi-hat voice). The CR-78 also has an accent control that increases the loudness of certain steps in a pattern. There are four patterns named "Rock" and two named "Disco". Other patterns are named "

Waltz The waltz ( , meaning "to roll or revolve") is a ballroom dance, ballroom and folk dance, in triple (3/4 time, time), performed primarily in closed position. Along with the ländler and allemande, the waltz was sometimes referred to by the ...

", " Shuffle", "Slow Rock", " Swing", "

Foxtrot The foxtrot is a smooth, progressive dance characterized by long, continuous flowing movements across the dance floor. It is danced to big band (usually vocal) music. The dance is similar in its look to waltz, although the rhythm is in a time ...

", "

Tango Tango is a partner dance and social dance that originated in the 1880s along the Río de la Plata, the natural border between Argentina and Uruguay. The tango was born in the impoverished port areas of these countries from a combination of Arge ...

", "

Boogie Boogie is a repetition (music), repetitive, swung note, swung note or shuffle rhythm,Burrows, Terry (1995). ''Play Country Guitar'', p.42. Dorling Kindersley Limited, London. . groove (music), "groove" or pattern used in blues which was origina ...

", "

Enka is a Japanese music genre considered to resemble traditional Japanese music stylistically. Modern ''enka'', however, is a relatively recent musical form which adopts a more traditional musical style in its vocalism than ''ryūkōka'' music, pop ...

", " Bossa Nova", "

Samba Samba () is a broad term for many of the rhythms that compose the better known Brazilian music genres that originated in the Afro-Brazilians, Afro Brazilian communities of Bahia in the late 19th century and early 20th century, It is a name or ...

", "

Mambo Mambo most often refers to: *Mambo (music), a Cuban musical form *Mambo (dance), a dance corresponding to mambo music Mambo may also refer to: Music * Mambo section, a section in arrangements of some types of Afro-Caribbean music, particul ...

", " Chacha", "

Beguine The Beguines () and the Beghards () were Christianity, Christian laity, lay religious orders that were active in Western Europe, particularly in the Low Countries, in the 13th–16th centuries. Their members lived in monasticism, semi-monastic ...

" and "

Rhumba Rhumba, also known as ballroom rumba, is a genre of ballroom music and ballroom dance, dance that appeared in the East Coast of the United States during the 1930s. It combined American big band music with Afro-Cuban rhythms, primarily the son cub ...

". Each pattern is available in two variations, labeled "A" and "B". It is possible to select more than one rhythm at a time, and also mute drum sounds from a pattern using the balance knob and dedicated cancel buttons. The CR-78 has been used in songs including "

In the Air Tonight "In the Air Tonight" is the debut solo single by English drummer and singer-songwriter Phil Collins. It was released as the lead single from Collins's debut solo album, ''Face Value (album), Face Value'', in January 1981. It was selected as the s ...

" by

Phil Collins Philip David Charles Collins (born 30 January 1951) is an English musician, songwriter, record producer and actor. He was the drummer and later became the lead singer of the rock band Genesis (band), Genesis and had a successful solo career, ac ...

, " I Can't Go for That (No Can Do)" by Daryl Hall & John Oates, "

Mad World "Mad World" is a 1982 song by British band Tears for Fears. Written by Roland Orzabal and sung by bassist Curt Smith, it was the band's third single release and first chart hit, reaching number three on the UK Singles Chart in November 1982. ...

" by

Tears For Fears Tears for Fears are an English pop rock band formed in Bath in 1981 by Curt Smith and Roland Orzabal. Founded after the dissolution of their first band, the mod-influenced Graduate, Tears for Fears were associated with the synth-pop bands o ...

, " Heart Of Glass" by " Blondie", and in live performances by

Radiohead Radiohead are an English rock band formed in Abingdon-on-Thames, Abingdon, Oxfordshire, in 1985. The band members are Thom Yorke (vocals, guitar, piano, keyboards); brothers Jonny Greenwood (guitar, keyboards, other instruments) and Colin Gre ...

References

External links

Roland CompuRhythm CR-78 Demo (YouTube video)

{{Roland Drum machines Japanese inventions Japanese musical instruments Products introduced in 1978 CR-78 CR-78 Musical instruments invented in the 1970s Analog drum machines

Operation

Sounds and rhythms

See also

References

External links