Question: What percussionist accompanies Duke Special and plays an instrument that traditionally works on a system of bellows?

Context articles: 5 Nights at the Empire Belfast Box Set
Under the Dark Cloth
Sheila Blumstein
I Never Thought This Day Would Come
Dan Whitehouse
Raw Fury
Saratovskaya garmonika
Shruti box
Duke Special
Oh Pioneer

In 2007 Duke Special headlined five nights at the Belfast Empire, Each night had a different theme, and each show featuring special songs and guests.
 Duke gave each show a title:
Under the Dark Cloth is the sixth studio album by Northern Irish recording artist Duke Special.
 It was self-released on 29 November 2011.
 It is the result of an invitation by the Department of Photography of the Metropolitan Museum of Art in New York to write a suite of songs inspired by the work of pioneering photographers Paul Strand, Alfred Stieglitz and Edward Steichen.
 The songs were co-written by Duke Special and Boo Hewerdine, with the exception of "Washerwoman" which was co-written by Duke Special and Neil Hannon, and are accompanied in the recording by the RTÉ Concert Orchestra.
Sheila Ellen Blumstein (born 1944) served as the interim president of Brown University after Gordon Gee departed and before Ruth Simmons took the position.
 Although Dr. Simmons is deemed the first female president of the university, Dr. Blumstein's portrait hangs in Sayles Hall along with those of past presidents.
 She traditionally works in the Department of Cognitive and Linguistic Sciences.
 She earned her doctorate from Harvard University.
I Never Thought This Day Would Come is the third album by Duke Special, which was released in Ireland by the label Universal Music Ireland on 17 October 2008, and released on soft release in the UK on 20 October 2008.
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Dan Whitehouse (born 9 March 1979) is an English folk musician.
 He is known for his distinctive voice and understated songwriting, and uses specially adapted instruments for people with disabilities.
 His 2012 album "Reaching for a State of Mind" was made with percussionist Chip Bailey, a collaborator of Duke Special, and won critical acclaim as having lyrical vulnerability and imaginative musical settings.
Raw Fury AB is a Swedish video game publisher, specializing in the publication of indie games, based in Stockholm, Sweden.
 The publisher was founded in February 2015 by Gordon Van Dyke, formerly producer for EA DICE on the various "Battlefield" titles, and Jonas Antonsson, ex-vice president of mobile for Paradox Interactive.
 The company was announced in April 2015 as a "publisher for boutique and indie games", calling themselves an "UnPublisher" as they intent to support developers by "dismantl[ing] how publishing traditionally works" and providing supportive services that better serve indie game development.
The Saratovskaya garmonika, named after the Russian city of Saratov, is a colorful variant on the standard one row push–pull diatonic button accordion.
 The chief distinguishing characteristic of this little folk accordion is that it plays the tonic scale (and major chord) on the bellows draw and the dominant on the bellows press, the reverse of a standard diatonic box.
 Another curious feature is the addition of two bells on the top of the instrument which are struck with tiny metal hammers attached to the bass and chord buttons for rhythmic accompaniment.
 They add a fun accent on dance tunes.
 It is possible to play the basses very lightly and avoid activating the bells, as they become rather tiresome after a while.
 The basses also have an additional tonic chord button in the center, lighter in tone than the regular chord, which is not attached to the hammers.
A shruti box (sruti box or surpeti) is an instrument that traditionally works on a system of bellows.
 It is similar to a harmonium and is used to provide a drone in a practice session or concert of Indian classical music.
 It is used as an accompaniment to other instruments and notably the flute.
 The shruti box is also used in classical singing.
 In classical singing the shruti box is used to help tune the voice.
 The use of the shruti box has widened with the cross-cultural influences of world music and new-age music to provide a drone for many other instruments as well as vocalists.
Duke Special (born Peter Wilson; January 4, 1971) is a songwriter and performer based in Belfast, Northern Ireland.
 A piano-based songwriter with a romantic style and a warm, distinctly accented voice, he has distinctive long dreadlocks, eyeliner and outfits he describes as "hobo chic".
 His live performances have a theatrical style inspired by Vaudeville and music hall, and often incorporate 78s played on an old-fashioned gramophone, or sound effects from a transistor radio.
 He is most often accompanied by percussionist "Temperance Society" Chip Bailey, who plays cheese graters and egg whisks, a Stumpf fiddle and a Shruti box, as well as the more typical drums and cymbals.
 Other musicians who perform with Wilson from time to time include Paul Pilot (guitar), Réa Curran (trumpet, backing vocals, accordion), Ben Castle (clarinet, saxophone), Ben Hales (bass guitar), Gareth Williams, "Professor" Ger Eaton (keyboards), Dan Donnelly (mandoline, backing vocals) and Serge Archibald III (saxophone, "ethereal background sounds", vibes).
Oh Pioneer is the seventh studio album by Northern Irish recording artist Duke Special.
 It was released on 9 July 2012 by Duke Special's own record label Adventures in Gramophone.