Double bass, or contrabass violin

Contrabass harmonica

Bass guitar

Contrabass tin whistle^[3]

Contrabass sackbut

Contrabass trumpet^[2]

Subcontrabass tuba in BBB♭

Contrabass ocarina

Contrabass balalaika, a large triangular lute used in traditional Russian folk music

Contrabass serpent^[1]

Acoustic bass guitar

Contrabass bugle, a variant tuba used in drum and bugle corps

Contrabass sarrusophone, range similar to the contrabass saxophone

Contrabass rackett

Great contrabass pommer

Octocontra-bass clarinet, three octaves below the B♭ soprano clarinet

Contrabassophone^[4]

Subcontrabass tubax, two octaves below the tenor saxophone

Contrabass saxhorn in EE♭

Reed contrabass

Chitarrone moderno, a plucked bass type designed around 1900 by Italian luthiers for use in a mandolin orchestra.

Hyperbass flute, four octaves below the C concert flute

Double contrabass flute, three octaves below the C concert flute

The octobass is an extremely large bowed string instrument constructed about 1850 in Paris by the French luthier Jean Baptiste Vuillaume (1798-1875). It has three strings and is essentially a larger version of the double bass (the specimen in the...

Contrabass guitar

Triple contrabass viol

Contrabass hélicon

The term contrabass (derived from the Italian contrabbasso) refers to very low musical instruments; generally those pitched one octave below instruments of the bass register. While the term most commonly refers to the double bass (which is tuned one octave lower than the cello, which is the bass instrument in the orchestral string family), many other instruments in the contrabass register exist. The term "contrabass" is relative, usually denoting a very low-pitched instrument of its type rather than one playing in a particular range. For example, the contrabass flute's lowest note is approximately an octave higher than that of the contrabass clarinet. Instruments tuned below contrabass instruments, such as the double contrabass flute or subcontrabass saxophone, may be referred to as "double contrabass," "triple contrabass," "subcontrabass," or "octocontrabass" instruments. On the other hand, the "contrabass" classification is often taken to include such instruments as well.

Contrabass clarinet, two octaves below the B♭ soprano clarinet

Octocontra-alto clarinet, two octaves below the alto clarinet

Contrabass flute, two octaves below the C concert flute

Subcontrabass flute, two octaves below the alto flute

Contrabass oboe, two octaves below the oboe

Contrabass saxophone, two octaves below the alto saxophone

Subcontrabass saxophone, two octaves below the tenor saxophone

Contrabassoon, an octave below the bassoon

Violone, a contrabass viol

Dalaruan, used in the modern Chinese orchestra

Dadihu, used in the modern Chinese orchestra

Guitarrón, a Mexican acoustic bass guitar used in mariachi ensembles