A txistu is a straight wooden pipe with exactly three finger holes and no keys at all. On paper that should limit it to a handful of notes, the way a child’s recorder with three fingers covered produces one note per combination and nothing more. The txistu does not work that way. Its documented range runs past two full octaves, and it has since the 18th century, when Basque Enlightenment musicians deliberately re-engineered what had been a simple, untuned pastoral pipe into an instrument capable of harmonized, written composition.

Most coverage of the txistu stops at the basics: three holes, played one-handed, the other hand free for a small drum. That is accurate but incomplete, and it skips the part that actually explains what a txistulari is doing on stage. A three-hole pipe cannot reach two octaves through ordinary fingering. It gets there through overblowing, forcing air pressure to jump the same three-hole fingering into a higher harmonic, and through the player half-covering holes to bend pitches into tune by ear and breath control alone. That is a genuinely difficult technical skill, which is why Pamplona’s own conservatory teaches it as a multi-year discipline, and why the city has run a dedicated, dated txistu institution, the Alarde de Txistularis, continuously since 1960.

This article draws on the Conservatorio Pablo Sarasate’s own curriculum page for the instrument’s construction, Wikipedia’s sourced history entry cross-checked against the Auñamendi Eusko Entziklopedia, a 2009 acoustics paper on the txistu’s tuning, and the Ayuntamiento de Pamplona’s own press releases documenting the Alarde de Txistularis, including its most recent edition, held this week.

Three Holes, No Keys, Two Octaves: How the Txistu Actually Works

A txistu is a straight tube roughly 30 to 45 centimeters long (the modern western Basque form settled around 42 centimeters), built as a fipple pipe: the player blows into a duct that channels air across a sharp edge to produce the sound, the same basic mechanism as a recorder or a tin whistle, rather than a reed the lips vibrate against directly. It has three finger holes only, two near the bottom on the front of the tube and one underneath, and it is played one-handed, traditionally the left, leaving the right hand free to keep rhythm on a small drum strapped to the same arm, called the ttun-ttun in Basque or tamboril in Spanish.

The traditional wood is ebony or boxwood, with walnut and other exotic woods also historically used, and modern instruments are sometimes made in plastic. Metal fittings, in alpaca, brass, or silver on better instruments, protect the wood tube and form the mouthpiece and reed assembly. The txistu and its larger companion, the silbote, are built in two articulated sections so the lower joint can be swapped to change key; the smaller txirula, tuned an octave above the silbote, is traditionally carved from a single piece of wood instead. Pamplona’s own Conservatorio Pablo Sarasate teaches all three as one family, sharing the same fingering.

None of that explains the two-octave range on its own. With only three holes and no keys, a plain open-and-closed fingering pattern would top out at a handful of pitches. The txistu instead depends on overblowing: the player pushes harder air pressure through the same fingering to jump it up into a higher harmonic, and half-covers holes to correct pitch by feel. A 2009 acoustics paper on the instrument’s tuning confirms exactly this, describing a pipe tuned in F where reaching the full range requires repeated overblown fingerings and constant manual correction, since there is no mechanical key to do that work instead. That is also why the instrument’s own conservatory page in Pamplona describes its tuning as complex and dependent almost entirely on the individual performer, not on the instrument’s build.

From an Untuned Pastoral Pipe to a Two-Octave Instrument: The 18th-Century Reinvention

The three-hole pipe’s presence in the Basque Country traces back to upright flutes that spread across the Iberian Peninsula in the Late Middle Ages, carried by traveling minstrels and adopted first by nobles and then by common musicians. Early written records in Romance languages name the players after the drum they played alongside, not the flute itself: tamborer, tamborino, tamborilero. The instrument is first documented specifically under the name txistu in 1864, though it was almost certainly in use well before that date.

For most of that history, the txistu needed no formal tuning at all. It was played to the simple pattern of pipe and drum together, and precision beyond that was not the point. That changed in the 18th century, when the Count of Peñaflorida and the wider Basque Enlightenment cultural movement took an interest in the instrument. Peñaflorida’s circle, tied to the Real Sociedad Bascongada de los Amigos del País, founded in 1764, had the txistu modified to cover two full octaves and introduced the larger silbote so ensembles could play harmonized, written music rather than a single repeated folk line. From that point, the instrument effectively split into two parallel traditions: rural musicians kept building and playing rustic, self-made, unstandardized txistus, while urban txistularis organized around schools built on the new, harmonically sophisticated conservatory version.

That divide, folk pipe on one side and conservatory instrument on the other, is still visible today in how the instrument is taught and played, and it is the direct reason a three-hole pipe with no keys ended up demanding the kind of formal, years-long training a conservatory offers.

The Association That Has Kept It Alive Since 1927

The instrument’s modern institutional life began at Arrate, in Eibar, on 20 September 1927, when musicians held the first assembly of the Euskal Herriko Txistulari Elkartea, the Basque Country-wide association dedicated to the txistu. Roughly 125 people joined at that founding meeting. The association has grown to more than 1,000 members and enthusiasts today, and its magazine, Txistulari, has been in print since its first issue in March and April of 1928.

Navarra has its own dedicated branch of that association, Euskal Herriko Txistulari Elkartea Nafarroa, based in Pamplona. It runs the region’s own txistu heritage work directly, including a documentation project called IRAUN dedicated to preserving the instrument’s history in Navarra specifically, and a free online beginner course built around thirty-six interactive video lessons for schools and individual learners. That regional branch is also the organization directly responsible for the city’s own annual txistu institution, described below. It is not the only Basque instrument Pamplona has built a real institutional home around. The txalaparta has no native history in the city at all, yet Pamplona still runs a standing association and municipal program dedicated to it. The txistu’s case is different only in that the city’s own conservatory and its txistu-playing tradition run deeper and further back.

Pamplona’s Own Txistu Institution: The Alarde That Turned 67 This Week

None of the international coverage of the txistu mentions that Pamplona runs its own dedicated, continuously dated txistu institution during San Fermín itself. The Alarde de Txistularis de Pamplona, organized every year by Euskal Herriko Txistulari Elkartea Nafarroa together with the Ayuntamiento de Pamplona, has run since 1960, a founding date confirmed independently by the city’s own press releases marking its 63rd anniversary in 2022 and its 66th and 67th editions in 2025 and 2026. It is one of the oldest fixed acts on the entire San Fermín program, and since 2013 it has expanded beyond a strictly classical recital into more theatrical, participatory staged concerts while keeping the txistu itself as the centerpiece.

This year’s edition, the 67th, took place on Sunday, 12 July 2026, at Plaza de San José rather than its usual stage on Paseo de Sarasate. The move was not a change of heart. That boulevard is currently under renovation, which meant it could not host the stage setup this year. Around 70 performers took part, most of them txistularis alongside brass and percussion players, under the direction of Xabier Olazabal Etxegia, with guest turns from the Orfeón Pamplonés choir, the folk and world-music group Mielotxin from Villava, and the Larratz Dantzari Taldea dance troupe from Burlada. The program mixed works by composers including Pablo Sorozábal and Lorenzo Ondarra with new pieces by Julen Leuza, and entry was free, as it is every year.

That is a different story from the one told about the txistularis who perform it, who play under paid municipal contracts rather than as informal folk musicians. This piece is about the instrument the Alarde exists to showcase: three holes, no keys, a deliberately re-engineered two-octave range, and a specific Pamplona institution built around it for more than six decades.

Frequently Asked Questions

What is a txistu?

A txistu is a traditional Basque three-hole fipple flute, played one-handed while the other hand plays a small drum. Despite having only three finger holes and no keys, it covers more than two octaves through overblowing and careful hole-covering, a tuning system formalized in the 18th century by Basque Enlightenment musicians associated with the Count of Peñaflorida.

How many holes does a txistu have?

Three: two on the front near the bottom of the tube and one underneath. There are no keys. The player reaches notes beyond the instrument’s basic range by overblowing into higher harmonics and by partially covering the holes to correct pitch, which is why tuning depends heavily on the individual performer’s skill.

Is txistu the same as chistu?

Yes. Txistu is the Basque spelling and the one used throughout the instrument’s own Basque cultural institutions today; chistu is the older Spanish-language spelling found in earlier historical sources and some Spanish-language references.

What is the Alarde de Txistularis?

The Alarde de Txistularis de Pamplona is the city’s annual txistu concert during San Fermín, organized by Euskal Herriko Txistulari Elkartea Nafarroa with the Ayuntamiento de Pamplona. It has run continuously since 1960, making it one of the oldest fixed acts in the entire festival program, and its 2026 edition was its 67th.

Every article on the Encierro blog is authored or reviewed by active bull runners with direct experience in Pamplona.


Dennis Clancey

Founder of Encierro

Dennis Clancey started attending San Fermín in 2007 and is a member of La Única Peña, Pamplona’s original peña. He has instructed more than 4,000 clients on how to run the encierro, possibly more than anyone in the history of the run.

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