View source for Contrabass clarinet

{{Short description| Very low pitched instrument of the clarinet family}}
{{Infobox Instrument
| name           = Contrabass clarinet
| image          = Selmer double bass clarinet+BC contralto 1553.jpg
| image_capt     = Clarinets: contrabass in B♭ (''left''), contra-alto in E♭ (''right'')
| image_size     = 230px
| background     = woodwind
| classification = [[Single-reed instrument|Single-reed]]
| hornbostel_sachs = 
| hornbostel_sachs_desc = 
| inventors      = 
| developed      = 1808
|range= <div style="text-align: center; background-color: white;">
  <score lang="lilypond">
    {
      \new Staff \with { \remove "Time_signature_engraver" }
      \clef treble \key c \major ^ \markup "written" \cadenzaOn
      \tweak font-size #-2 c1 \finger \markup \text "low C"
      \arpeggioBracket <e f'''>1 \arpeggio
      \once \hide r1
      \clef bass ^ \markup "sounds"
      \tweak font-size #-2 bes,,, \finger \markup \text "low C"
      \arpeggioBracket
      <d,, ees'>1\arpeggio
    }
  </score></div>The contrabass clarinet in B♭ sounds two octaves and a [[major second]] lower than written.
| related        = * [[Contra-alto clarinet]]
* [[Bass clarinet]]
| musicians      = * [[List of clarinetists]]
| articles       = 
}}

The '''contrabass clarinet''' or '''double bass clarinet''' (also '''pedal clarinet''', after the [[pedal keyboard|pedals]] of [[pipe organ]]s) and [[contra-alto clarinet]] are the two largest members of the [[clarinet family]] that are in common usage.<ref name="Grove-CbCl">{{Cite Grove |title=Contrabass clarinet |id=06357}}</ref><ref name="Grove-Pedal">{{Cite Grove |title=Pedal clarinet |id=21171}}</ref> Modern contrabass clarinets are [[transposing instrument]]s pitched in B♭, sounding two octaves lower than the common B♭ [[soprano clarinet]] and one octave below the [[bass clarinet]].<ref name="Grove-CbCl"/> Some contrabass clarinet models have extra keys to extend the range down to low written E♭{{sub|3}}, D{{sub|3}} or C{{sub|3}}. This gives a tessitura written range, notated in treble clef, of C{{sub|3}} – F{{sub|6}}, which sounds B♭{{sub|0}} – E♭{{sub|4}}.{{sfn|Adler|2016|p=230}} Some early instruments were pitched in C; [[Arnold Schoenberg]]'s ''[[Five Pieces for Orchestra|Fünf Orchesterstücke]]'' specifies a contrabass clarinet in A,<ref>Arnold Schoenberg, ''Five Orchestral Pieces'' (Courier Dover, 1999)</ref> but there is no evidence such an instrument has ever existed.{{sfn|Baines|1991|p=131}}

The smaller E♭ contra-alto clarinet is sometimes referred to as the "E♭ contrabass clarinet" and is pitched one octave lower than the E♭ alto clarinet.<ref name="Grove-CbCl"/>

Two models of '''subcontrabass clarinet''' (the '''octocontra-alto''' and '''octocontrabass''') were built as prototypes by [[Leblanc (musical instrument manufacturer)|Leblanc]] in the 1930s and survive in the Leblanc museum.<ref name="Newton-Octo">{{Cite AV media |title=The True History of the Octo-Contra Clarinets? |medium=video |last=Newton |first=Bret |date=6 November 2018 |url= https://www.youtube.com/watch?v=_HfH0Mu8VkM |access-date=11 October 2022 |via=YouTube }}</ref>

==History==

===Contrabass===
The earliest known contrabass clarinet was the ''contre-basse guerrière'' invented in 1808 by a goldsmith named Dumas of Sommières; little else is known of this instrument.  The ''batyphone'' (also spelled ''bathyphone'', Ger. and Fr. ''batyphon'') was a contrabass clarinet which was the outcome of [[W. F. Wieprecht]]'s endeavor to obtain a [[contrabass]] for the [[reed instrument]]s. The batyphone was made to a scale twice the size of the [[clarinet]] in C, the divisions of the [[chromatic scale]] being arranged according to acoustic principles. For convenience in stopping holes too far apart to be covered by the fingers, crank or swivel keys were used. The instrument was constructed of [[maple]]-wood, had a clarinet mouthpiece of suitable size connected by means of a cylindrical brass crook with the upper part of the tube and a brass bell. The pitch was two [[octave]]s below the clarinet in C, the compass being the same, and thus corresponding to the modern [[bass tuba]]. The tone was pleasant and full, but not powerful enough for the contrabass register in a military band. The batyphone had besides one serious disadvantage: it could be played with facility only in its nearly related keys, G and F major. The batyphone was invented and patented in 1839 by F.W. Wieprecht, director general of all the [[Prussia]]n [[military band]]s, and E. Skorra, the court instrument manufacturer of [[Berlin]]. In practice the instrument was found to be of little use, and was superseded by the bass tuba.

A batyphone bearing the name of its inventors formed part of the Snoeck collection which was acquired for Berlin's collection of ancient musical instruments at the [[Universität der Künste Berlin|Hochschule für Musik]].<ref>This description of the batyphone is quoted, with minor revisions, from {{Cite EB1911|wstitle=Batyphone|first=Kathleen|last=Schlesinger|author-link=Kathleen Schlesinger|volume=3|page=535}} This in turn derived its description mainly from a manuscript treatise on instrumentation by Wieprecht, in 1909 in the possession of Herr [[Otto Lessmann]] (Berlin), and reproduced by Capt. [[C.R. Day]], in ''Descriptive Catalogue of the Musical Instruments of the Royal Military Exhibition, London, 1890'' (London, 1891), p. 124.</ref>  Soon after Wieprecht's invention, [[Adolphe Sax]] created his ''clarinette-bourdon'' in B{{ music|flat}}.

In 1889, [[Fontaine-Besson]] began producing a new ''pedal clarinet'' (see photograph).
This instrument consists of a tube {{convert|10|ft|m}} long, in which cylindrical and conical bores are combined.
The tube is doubled up twice upon itself. 
There are 13 keys and 2 rings on the tube, and the fingering is the same as for the B{{ music|flat}} clarinet except for the eight highest semitones. 
The tone is rich and full except for the lowest notes, which are unavoidably a little rough in quality, but much more sonorous than the corresponding notes on the [[contrabassoon]]. 
This is an octave lower than a bass clarinet and two octaves lower than a B♭ clarinet.
The upper register resembles the chalumeau register of the B{{ music|flat}} clarinet, being reedy and sweet.<ref>This description of the Besson pedal clarinet is condensed from Schlesinger (1911) ''Pedal Clarinet''.
The date of 1889 is from Rendall.</ref> Besson exhibited a new pedal clarinet in London in 1892.<ref>"American Musical Interests in London." Music Trade Review 16:7 (24 September 1892), 154.</ref>
None of these instruments saw widespread use, but they provided a basis for contrabass clarinets made beginning in the late 19th and early 20th centuries by several manufacturers, notably those designed by {{ill|Charles Houvenaghel|fr}}

for [[Leblanc (musical instrument manufacturer)|Leblanc]], which were more successful.

===Contra-alto===
{{main|Contra-alto clarinet}}
The contra-alto clarinet is higher-pitched than the contrabass and is pitched in the key of E{{music|flat}} rather than B{{music|flat}}. The unhyphenated form "contra alto clarinet" is also sometimes used, as is "contralto clarinet", but the latter is confusing since the instrument's range is much lower than the [[contralto]] vocal range; the more correct term "contra-alto" is meant to convey, by analogy with "contrabass", that the instrument plays an octave lower than the [[alto clarinet]]. It is also referred to as the E{{music|flat}} contrabass clarinet. It is the second-largest member of the clarinet family in regular use, larger than the more common [[bass clarinet]] but not as large as the B{{music|flat}} contrabass clarinet.

Like other clarinets, the contra-alto clarinet is a [[wind instrument]] that uses a [[reed (instrument)|reed]] to produce sound.  The keys of the contra-alto are similar to the keys on smaller clarinets, and are played in the same way.  Some contra-alto clarinet models have a range extending down to low (written) E{{music|flat}}, sounding as the lowest G{{music|flat}} on the piano (aka G{{music|flat}}<sub>1</sub>), while others can play down to low (written) C, sounding E{{music|flat}}<sub>1</sub>.

The earliest contra-alto clarinets were developed in the first half of the nineteenth century; these were usually pitched in F and were called ''contrabasset horns,'' being an octave lower than the [[basset horn]].  Albert (probably E. J. Albert, son of [[Eugène Albert]]) built an instrument in F around 1890.<ref>{{Cite EB1911|wstitle=Pedal Clarinet|first=Kathleen|last=Schlesinger|author-link=Kathleen Schlesinger|volume=21|page=36}}</ref>  In the late 19th and early 20th century contra-alto clarinets in E{{music|flat}} finally attained some degree of popularity.

The contra-alto clarinet is used mostly in [[concert band]]s and [[clarinet choir]]s, where it usually, though not always, plays the [[bass line]] of a piece of music.  While there are few parts written specifically for it, the contra-alto can play the [[baritone saxophone]] part and sounds the same pitch; it is also possible to read parts written in the bass clef for instruments pitched in C (such as [[bassoon]] or [[tuba]]) as if the part were in the [[treble clef]], while adjusting the [[key signature]] and any [[accidental (music)|accidentals]] as necessary by adding three [[sharp (music)|sharps]] to the [[music]].<ref>{{cite web|last=McGann|first=John|title=Deep Secrets of Clef Reading and Transposition|url=http://www.johnmcgann.com/clefs.html|publisher=John McGann|access-date=15 February 2012|archive-url=https://web.archive.org/web/20120107124829/http://www.johnmcgann.com/clefs.html|archive-date=7 January 2012|url-status=dead}}</ref>   It is occasionally used in jazz, and a few solo pieces have been written for it.  The contra-alto clarinet is also used in a few Broadway pit orchestras, with its parts being written in reed books as a doubled instrument (e.g. with soprano clarinet and bass clarinet).

===Subcontrabass (octocontra-alto, octocontrabass)<span class="anchor" id="Subcontrabass"></span><span class="anchor" id="Subcontrabass clarinet"></span>===
[[File:Subkontrabassklarinetten Leblanc (1939) und Foag (2025).jpg|thumb|350px|Subcontrabass clarinets by Leblanc 1939 and Foag 2025]]

In 1935, Belgian instrument maker {{ill|Charles Houvenaghel|fr}} at [[Leblanc (musical instrument manufacturer)|Leblanc]] built a single prototype {{vanchor|Octocontrabass|Octocontrabass clarinet|text='''octocontrabass clarinet'''}} in B♭ a full octave below the contrabass and standing {{convert|8|foot|2|in}} high. It was exhibited at the [[Brussels International Exposition (1935)|World's Fair]] that year.<ref name="Newton-Octo"/> Its lowest note, C{{sub|0}} (written D{{sub|3}}), is the lowest note on a [[Eight-foot pitch|32′]] pedal [[organ stop]]. This instrument survives in non-playable condition in the Leblanc collection of the ''{{Ill|Musée des Instruments à vent|fr}}'' in [[La Couture-Boussey]], France.<ref name="GAC-octocontrabass">{{Cite web |title=Octocontrabass clarinet in Bb – Leblanc |publisher={{Ill|Musée des Instruments à vent|fr}} |publication-place=[[La Couture-Boussey]] |url=https://artsandculture.google.com/asset/view-4/BQHDjnfe4oqMbw |access-date=12 October 2022 |via=[[Google Arts & Culture]] }}</ref><ref>{{cite journal |title=Leblanc (advertisement) |journal=Music Educators Journal |volume=46 |issue=6 |date=June–July 1960 |page=40-41 |url= https://archive.org/details/sim_music-educators-journal_june-july-1960_46_6/page/40/mode/2up |access-date=7 April 2025 |quote=Leblanc...renowned leader in clarinet inventions and improvements: Through continuous research and development, Leblanc has made the Complete Clarinet Choir a reality. From their famed technical laboratories have come the B♭ Contrabass Clarinet, the B♭ Octo-Contrabass...}}</ref>
Houvenaghel also built two slightly smaller prototype {{vanchor|Octocontra-alto|Octocontra-alto clarinet|text='''octocontra-alto clarinets'''}} in E♭ for Leblanc in the 1930s, pitched a fifth below the B♭ contrabass and one octave below the E♭ [[contra-alto clarinet]].<ref name="GAC-octocontralto">{{Cite web |title=Clarinets comparison |publisher={{Ill|Musée des instruments à vent|fr}} |publication-place=[[La Couture-Boussey]] |url= https://artsandculture.google.com/asset/clarinets-comparison-leblanc/FwHou3xKsBU_XA |access-date=11 October 2022 |via=[[Google Arts & Culture]] }}</ref> Only one was ever finished with key work, in 1971 to low C (sounding E♭{{sub|0}}).<ref name="Newton-Octo"/> That year, Leblanc announced its "retail price" as $3700 USD ({{inflation|index=US |value=3700 |start_year=1971 |fmt=eq |r=-3 |cursign=$ }}),{{Inflation/fn|US}} though none were apparently sold.<ref>"Lelanc here to introduce a new clarinet." Kenosha News, 9 August 1971, 22.</ref> This instrument is also on permanent exhibit at the museum, donated in 2011 by Leblanc president Leon Pascucci and restored to playable condition by French clarinettist and technician Cyrille Mercadier.<ref name="NAMM-Pascucci">{{Cite interview |title=Oral History Interview: Leon Pascucci |interviewer-last=Del Fiorentino |interviewer-first=Dan |last=Pascucci |first=Leon |work=NAMM |date=8 March 2011 |access-date=28 April 2025 |url= https://www.namm.org/library/oral-history/leon-pascucci |publication-place=Carlsbad |publisher=[[National Association of Music Merchants]] }}</ref><ref name="YT-octocontralto-duet">{{Cite AV media |title=Octocontralto & Contrabass Clarinet Duet: Humorous scherzo, Sergei Profofiev |last=Mercadier |first=Cyrille |others=Faure, Olivier (octocontra-alto clarinet); Mercadier, Cyrille (contrabass clarinet) |medium=video |date=27 September 2011 |url=https://www.youtube.com/watch?v=mcXGn1KJN_0 |access-date=11 October 2022 |via=YouTube }}</ref>

Although these enormous ''"octo"'' clarinets are mentioned in some texts (e.g. Baines, 1991) neither were manufactured by Leblanc beyond the prototype stage.{{sfn|Baines|1991|p=125}}{{sfn|Ellsworth|2015|p=105|loc="octacontra-alto clarinet"}} There are some contemporary efforts to recreate them using modern materials and [[3D printing]] technology.
In late 2018, American instrument maker and woodwind technician Jared De Leon began work on prototypes for B♭ octocontrabass and E♭ octocontra-alto clarinets, and in January 2025 demonstrated a working E♭ octocontra-alto clarinet based on a 3D printed design.<ref>{{Cite AV media |title=I'm building an Octocontrabass clarinet, here's how I'll do it... |date=11 November 2018 |first=Jared |last=De Leon |medium=video |url= https://www.youtube.com/watch?v=xs2bgp5B4R0 |access-date=19 December 2024 |via=YouTube}}</ref><ref>{{Cite AV media |title=I made an Eb octocontra-alto clarinet! |date=24 January 2025 |first=Jared |last=De Leon |medium=video |url= https://www.youtube.com/watch?v=cU2bmfkOHBk |access-date=24 January 2025 |via=YouTube}}</ref>
In April 2025 at the Akustika Nürnberg trade show after five years of development, the German instrument maker Foag Klarinetten presented their first production all-metal B♭ octocontrabass clarinet, with keys to low C (sounding B♭{{sub|-1}}).<ref name="foag-prototype-video">{{cite web |author=Foag Klarinetten |title=Endlich Geschafft!!!| language=de |trans-title=Finally done!!! |date=31 March 2025 |url=https://www.facebook.com/Foag.Klarinetten/posts/pfbid0xs38VJVK4BpEJLKCcWyJ8BEpoBFCCrrZcF8d2BFfcKoRPiyUXZUtfgdGdEAoyjLzl |access-date=7 April 2025 |via=Facebook}}</ref><ref>{{Cite web |title=Trade Fair 2025 Akustika – Presentation of the Octocontrabass clarinet |author=Foag Klarinetten |date=29 April 2025 |url= https://musik-foag.de/en/2025/04/29/messe-2025-akustika-vorstellung-der-oktokontrabassklarinette/ |access-date=18 September 2025}}</ref>

At least three pieces of music have been written specifically for octocontrabass by [[Norway|Norwegian]] composer [[Terje Bjørn Lerstad|Terje Lerstad]] (''Trisonata'', Op. 28; ''De Profundis'', Op. 139; and ''Mirrors in Ebony'' for clarinet choir, Op. 144). There are no known recordings of these pieces.<ref>{{cite web |title=Octocontrabass & Octocontralto Clarinets |url=http://www.contrabass.com/pages/octobass.html |publisher=Contrabass Compendium |access-date=15 February 2012 |archive-url=https://web.archive.org/web/20210912221713/http://www.contrabass.com/pages/octobass.html |archive-date=12 September 2021 |url-status=live }}</ref>

==Manufacturers==
{{multiple image
| align             = right
| total_width       = 600
| image1            = K-B-Klar Fritz (2).jpg
| caption1          = Fritz Wurlitzer German contrabass clarinet (prototype ca. 1975)
| alt1              = Image of Fritz Wurlitzer's prototype of a German system contrabass clarinet.
| image2            = Kontrabassklarinetten Eppelsheim und Le Blanc.jpg
| alt2              = 
| caption2          = Contrabass clarinets by Benedikt Eppelsheim and Leblanc
}}
'''France:'''
* [[Henri Selmer Paris]]
** Contrabass (Model 41- pictured in the info box above) to low C in bass clarinet-shape with rosewood body.
** Contra-alto (Model 40) to low E♭ in bass clarinet-shape with rosewood body.
* [[Buffet Crampon]] makes a contra-alto clarinet, [[grenadilla]] body in bass clarinet-shape, pictured in the info box above. 

'''USA:''' 
* [[Conn-Selmer]] has one model of each of the two clarinets under its brand Leblanc.
** Contrabass: Leblanc L7182, to low E-flat, ABS body.
** Contra-alto: Leblanc L7181, to low E-flat, ABS body.
'''Germany:'''
* [[Benedikt Eppelsheim|Benedikt Eppelsheim Blasinstrumente]] produce the already presented metal contrabass clarinet with Boehm or German system fingering.
* [[Fritz Wurlitzer]] contrabass clarinet with German system
'''Italy:''' 
* [[Ripa Musical Instruments]] distributes a double bass clarinet made of metal in paperclip form.

'''China:''' 
* Tianjin Frater Musical Instrument Co. produces a double bass clarinet made of metal in paperclip form.

== Development ==
[[File:Jochen Seggelke contrabass clarinet extended.jpg|thumb|140px|left|Contrabass Clarinet Extended (CLEX)]]

Since 2012, a research team led by Ernesto Molinari (professor at the Bern University of the Arts), Jochen Seggelke (clarinet maker) and Daniel Debrunner (mechatronics engineer) has been developing various prototypes of a new double bass clarinet called '''CLEX'''' (Contrabass Clarinet Extended) as a mechatronic solution.<ref>[https://www.hkb-interpretation.ch/projekte/contrabassclarinet-extended Contrabass clarinet Extended project]</ref><ref>[https://a-klarinette.de/familie The large family of clarinet instruments]</ref> The motorised keys are remotely controlled by the musician's fingers via keys equipped with electronic sensors. This type of instrument opens up new musical perspectives for instrumentalists and composers. The positioning of the holes on the clarinet body is completely free of traditional mechanical constraints.<ref>[https://www.fresh-wind.ch/fr/instruments/clarinettes-saxophones/ ''La clarinette contrebasse CLEX'']</ref>

In June 2016, Molinari presented the first of three working prototypes at two concert events.

In a video posted in December 2021, Jared De Leon cited the CLEX project as an inspiration for a new theoretical prototype octocontrabass clarinet that would utilize mechatronic keywork.<ref>{{Cite AV media |url=https://www.youtube.com/watch?v=VMBeMWJtjlw&t=4s |title=A new octocontrabass clarinet prototype, plus Bb-1 (Low C) demo! |date=2021-12-13 |last=Jared De Leon |access-date=2024-12-09 |via=YouTube}}</ref>

==Performers==

[[File:Anthony Braxton playing a paperclip contrabass clarinet.jpg|thumb|300px| [[Anthony Braxton]] playing a paperclip contrabass clarinet in Rochester, NY, 1976]]Probably the best-known musician who has made significant use of the contrabass clarinet as a solo instrument is [[Anthony Braxton]]. Other performers (most of whom use the instrument in the genres of jazz and free improvised music) include [[James Carter (musician)|James Carter]], [[Brian Landrus]], [[Douglas Ewart]], [[Vinny Golia]], [[Mwata Bowden]], [[Ernst Ulrich Deuker]], [[Paolo Ravaglia]], [[Hamiet Bluiett]], [[Kidd Jordan|Edward "Kidd" Jordan]], [[Harry Sparnaay]] (NL), [[Armand Angster]] (F) and [[Jason Alder]]. [[Leroi Moore]] of the [[Dave Matthews Band]] played a contrabass clarinet on the song "So Right" from the 2001 album ''[[Everyday (Dave Matthews Band album)|Everyday]]'' and [[John Linnell]] of [[They Might Be Giants]] utilizes the contra-alto clarinet on their 2013 album ''[[Nanobots (album)|Nanobots]]'', as well as subsequent releases by the band. [[Colin Stetson]] makes use of the instrument on his 2015 collaboration album ''[[Never Were the Way She Was]]'' with violinist [[Sarah Neufeld]] and [[Schwenk & Seggelke|Jochen Seggelke]]. In 2020, Sarah Watts, a bass clarinet specialist who also plays an active role in commissioning and performing new works for the contrabass clarinet, released a solo album featuring works for contrabass clarinet and piano entitled ''Into the Depths''.<ref>{{Cite web |title=The new album of Sarah Watts, contrabass clarinet virtuoso |url=https://www.selmer.fr/en/blogs/infos/le-nouvel-album-de-sarah-watts-virtuose-de-la-clarinette-contrebasse?srsltid=AfmBOopT86XqhueJ8VjFwUgIH-UEIWP7xnptGb7yicBfiPD2VA0-w7HM |access-date=2024-12-09 |website=Henri SELMER Paris |language=en}}</ref>

== Use in contemporary classical music ==
The contrabass clarinet has a relatively modest yet increasing presence in modern compositions. It is most commonly used in works for wind band, clarinet choir, and solo contrabass clarinet, though there exist pieces for orchestra and other ensembles that call for the contrabass clarinet, and the contrabass clarinet is heavily featured in many film scores.

Some notable composers who have written for the contrabass or contra-alto clarinet include [[Alfred Reed]], [[Vincent Persichetti]], [[John Adams (composer)|John Adams]], [[Philip Glass]], [[David Maslanka]], [[John Mackey (composer)|John Mackey]], [[Daniel Dorff]], [[Franco Donatoni]], and David Bennett Thomas.<ref>{{Cite web |last=Maslanka |first=Matthew |title=Works |url=https://davidmaslanka.com/works1/ |access-date=2024-12-09 |website=David Maslanka |language=en-US}}</ref><ref>{{Cite web |title=Products {{!}} John Mackey |url=https://www.johnmackey.com/music/ |access-date=2024-12-09 |website=www.johnmackey.com}}</ref><ref>{{Cite web |title=Music by Daniel Dorff |url=https://danieldorff.com/ |access-date=2024-12-09 |website=danieldorff.com}}</ref><ref>{{Cite web |title=Instrumental Chamber and Solo Music {{!}} David Bennett Thomas {{!}} Composer |url=https://www.davidbthomas.com/compositions/chamber-solo/ |access-date=2024-12-09 |website=www.davidbthomas.com}}</ref>

A catalog of compositions featuring the contrabass clarinet was compiled in 2017 by performer Sarah Watts and may be downloaded without a fee from her website.<ref>{{Cite web |title=sarahkwatts.co.uk |url=http://www.sarahkwatts.co.uk/free-repertoire-guides.html |access-date=2024-12-09 |website=www.sarahkwatts.co.uk}}</ref>

=== Concert band ===
The modern [[Wind band|concert band]] (also known as a wind band or wind orchestra) is the ensemble in which the contrabass clarinet is most often found. Most modern concert band scores have parts for either contrabass or contra-alto clarinet, and the contrabass clarinet is useful within a balanced band instrumentation to solidify the low range of the [[Woodwind instrument|woodwind]] section.<ref>{{Cite journal |last=Neilson |first=Dr. James |date=April 1, 1965 |title=Ideal Instrumentation for Concert Band |journal=Music Journal |volume=23 |issue=4 |pages=48 }}</ref> The increasing consistency of the contrabass clarinet's inclusion in the modern concert band allows contemporary band composers to score exposed passages or solos for the instrument, which are not typically seen in other ensembles that may include the contrabass clarinet.

Some notable band works that feature the contrabass clarinet include ''Blue Shades'' by [[Frank Ticheli]],<ref>{{Cite web |title=Blue Shades: 25th Anniversary Edition Virtual Score |url=https://www.manhattanbeachmusiconline.com/frank_ticheli/blue-shades-25th-anniversary-edition-virtual-score.html |access-date=2024-12-09 |website=www.manhattanbeachmusiconline.com}}</ref> which features a contrabass clarinet solo, and ''One Life Beautiful'' by [[Julie Giroux]], which calls for either a contrabass clarinet in B♭ or a contra-alto clarinet in E♭. It is specified by the composer that this part is not optional.<ref>{{Cite web |title=One Life Beautiful by Julie Giroux |url=https://www.juliegiroux.org/one-life-beautiful |access-date=2024-12-09 |website=Julie Giroux |language=en}}</ref>

=== Clarinet choir ===
The contrabass clarinet forms the lowest bass voice of a modern [[clarinet choir]]. While not all contemporary compositions for clarinet choir include parts for the contrabass clarinet, many do, especially more recent pieces.

Some notable works for clarinet choir that call for contrabass clarinet include ''Gather at The Rock'' by Jenni Brandon<ref>{{Cite web |date=2024-06-18 |title=Gather at the Rock for Clarinet Choir |url=https://jennibrandon.com/product/gather-at-the-rock-for-clarinet-choir/ |access-date=2024-12-09 |website=Jenni Brandon |language=en-US}}</ref> and ''Dusk'' by [[Steven Bryant (composer)|Steven Bryant]].<ref>{{Cite web |title=Dusk (Clarinet Choir) – Music |url=https://www.stevenbryant.com/music/catalog/dusk-clarinet-choir |access-date=2024-12-09 |website=Steven Bryant |language=en}}</ref>

=== Solo repertoire ===
The contrabass clarinet as a solo instrument has only been explored relatively recently, mirroring the relative recency of the instrument's modern development. The body of works for solo contrabass clarinet, encompassing works for unaccompanied contrabass clarinet, contrabass clarinet and piano, and contrabass clarinet and orchestra, is expanding rapidly as contemporary composers continue to explore its unique characteristics and capabilities.

Some notable works for solo contrabass clarinet include [[Lucien Goethals]]'s ''Concerto for Contrabass Clarinet and Orchestra'', ''Soul Searching - Contrabass Clarinet Concerto'' by Martin Georgiev,<ref>{{Cite AV media |url=https://www.youtube.com/watch?v=YVkse4-H9As |title=Soul Searching - Contrabass Clarinet Concerto (2016) |date=2017-08-03 |last=Martin Georgiev |access-date=2024-12-09 |via=YouTube}}</ref> ''Ombra I'' and ''Ombra II'' by [[Franco Donatoni]],<ref>{{Cite AV media |url=https://www.youtube.com/watch?v=8rtA9Nn1yqU |title=Franco Donatoni- Ombra for contrabass clarinet |date=2018-12-19 |last=Jason Alder |access-date=2024-12-09 |via=YouTube}}</ref> and ''Into the Depths'' by Elizabeth Kelly.<ref>{{Cite AV media |url=https://www.youtube.com/watch?v=MpSN3RHSVxA |title=Into The Depths for contrabass clarinet and piano, by Elizabeth Kelly |date=2020-05-23 |last=Sarah Watts |access-date=2024-12-09 |via=YouTube}}</ref>

=== Orchestra ===
The contrabass clarinet is a very rare visitor to the standard symphony orchestra as a member of the clarinet section, and most orchestra pieces that call for contrabass clarinet feature the instrument as a soloist. Still, there have been occasional additions to the orchestral repertoire that feature the contrabass clarinet, including ''[[On the Transmigration of Souls]]'' by [[John Adams (composer)|John Adams]],<ref>{{Cite web |title=John Adams - On the Transmigration of Souls |url=https://www.boosey.com/cr/music/Adams-On-the-Transmigration-of-Souls/26239 |access-date=2024-12-09 |website=www.boosey.com}}</ref> ''[[Amériques]]'' by [[Edgard Varèse]], and ''La Terre est un homme'' by [[Brian Ferneyhough]], which all call for contrabass clarinet as a part of their expanded woodwind sections.<ref>{{Cite web |title=La Terre est un homme |url=https://brahms.ircam.fr/en/work/la-terre-est-un-homme |access-date=2024-12-09 |website=brahms.ircam.fr}}</ref>

=== Notable appearances in opera and film ===

* ''[[Prometeo]]'', an unconventional opera by [[Luigi Nono]], features the contrabass clarinet.<ref>{{Cite web |title=Prometeo. Tragedia dell'ascolto |url=https://www.luiginono.it/en/works/prometeo-tragedia-dellascolto/ |access-date=2024-12-09 |website=Luigi Nono |language=en-US}}</ref>
* Kepler, an opera by [[Philip Glass]], features a part for contrabass clarinet doubling bass clarinet.<ref>{{Cite web |title=Kepler – Philip Glass |url=https://philipglass.com/compositions/kepler/ |access-date=2024-12-09 |language=en-US}}</ref>
* A prominent contra-alto/contrabass clarinet solo may be heard in a song from the score for the 1968 film ''[[Winnie the Pooh and the Blustery Day]]''.
* Composer [[Colin Stetson]] uses the contrabass clarinet extensively in the score for the 2018 film ''[[Hereditary (film)|Hereditary]]''.<ref>{{Cite web |date=2018-06-15 |title=HEREDITARY – Colin Stetson |url=https://moviemusicuk.us/2018/06/15/hereditary-colin-stetson/ |access-date=2024-12-09 |website=MOVIE MUSIC UK |language=en}}</ref>
* Composer [[Howard Shore]] features the contrabass clarinet in the score for the 2002 film ''[[The Lord of the Rings: The Two Towers]]''.<ref>{{cite web |title=The Lord of the Rings: The Two Towers – Annotated Score |publisher=[[New Line Cinema|New Line Productions]] |archive-url= https://web.archive.org/web/20070224170815/http://www.lordoftherings-soundtrack.com/ttt_annotated_score.pdf#page=15 |archive-date=24 February 2007 |url= http://www.lordoftherings-soundtrack.com/ttt_annotated_score.pdf#page=15 |url-status=dead |page=15}}</ref>

==References==
{{Reflist}}

==Sources==
{{Refbegin}}
{{ubli
 | {{Cite Q|Q115258889|last=Adler |first=Samuel |date=2016 }}
 | {{Cite Q|Q115155619|last=Baines |first=Anthony |date=1991 }}
 | {{Cite Q|Q115259125|last=Rendall |first=F. Geoffrey |date=1971 }}
 | {{Cite Q|Q123566349|last=Ellsworth |first=Jane |date=2015 }}
}}
{{Refend}}

==External links==
*[http://www.contrabass.com/pages/cbcl.html Contrabass clarinet] page at contrabass.com.
*[http://fellerich.lu/contrabassclarinet/ Photos and audio example] of a Leblanc paper clip model instrument.
*[https://www.youtube.com/watch?v=0LRxX_LNLHU&t=56s CLEX in action]
*[http://www.sarahkwatts.co.uk/home/index.html Sarah Watts's website]
*[https://www.jasonalder.com/cbclresearch/ Jason Alder's contrabass clarinet research]
{{Clarinet}}
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[[Category:Contrabass instruments]]
[[Category:Clarinets]]
[[Category:B-flat instruments]]
[[Category:Concert band instruments]]