Faithful to tradition - unfaithful to routine


23.09.2017 / Opole / Festival “W oparach dźwięków”

20.07.2017 / Cesky Krumlov / Euroradio Folk Festival / Cesky Krumlov Folk Festival

We will play on 38th Euroradio Folk Festival (EFF).
This year festival will be held in the Czech Republic, in conjunction with the Ceský Krumlov Folk Festival.


30.06.2017 / Kraków / Projekt Kolberg / Theatre Łaźnia Nowa

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20.05.2017 / Warsaw / Project Śryż / Museum Night

Central Archives of Historical Records, Długa street 7
We play at 7pm & 9pm
Our guest will be Ewa Wałecka (Warsaw Village Band)

Śryż (eng. Pancake Ice; fr.Frazil) is a form of ice that is accompanied with characteristic, specific sound. You don’t hear cracking of ice yet. Sounds of pancake ice are heard from a distance as a constant sough…
Our concert is a music story played on polish instruments – suka biłgorajska, fidel płocka and lira korbowa with voice. Story that sometimes reaches the shore, falls into the swirling rythm of polish dance oberek or listens to the lyrical melody of kujawiak – just to drift with the Vistula river…



Did you like it? Listen to the entire album.

Our instruments

Suka biłgorajska

Suka biłgorajska is the most mysterious Polish string instrument, originating from the region of Kocudza near Janow Lubelski. It is played using a nail technique, typical of Middle East instruments. This means that the artist strikes the strings with nails instead of fingertips, which is the case when playing the guitar or the violin. The most accurate source of knowledge on how the suka biłgorajska looked like is a watercolor by the renowned painter Wojciech Gerson, dating from 1895.

DI 28498; Gerson Wojciech 

On the bottom of the watercolor engraving, there is an inscription which reads: ”Suka – an ancient Polish string instrument, purchased in. 188. in the village of Kocudza (situated between Janow and Frampol), in the Biłgoraj county The last musician to have played it was Jozef Góra, then aged 50.”
Unfortunately, no such instrument has survived to this day.

In the 1990s, two independently working musicians: Zbigniew Butryn from Janów Lubelski and Dr. Maria Pomianowska from Warsaw, tried to reconstruct the instrument and re-create the method of playing it, working in cooperation with Prof. Ewa Dahlig-Turek and the violin-maker Andrzej Kuczkowski.

Fidel płocka

Fidel płocka – a six-string instrument, played using a nail technique. In 1985,a well-preserved instrument dating from the second half of the 16th century was found in an old, unused well during archaeological excavations in Płock. The original instrument is now on display at the Masovian Museum in Płock.

Just as in the case of the suka fiddle, the violin-maker Andrzej Kuczkowski ventured its reconstruction, in cooperation with ethnomusicologist Ewa Dahlig-Turek. The structure of the original instrument shows that the technique of playing it must have been similar to the method of playing the suka biłgorajska, i.e. its striking its strings with nails. The instrument is supported on the musician’s lap.

Loop station

Loop station – a magical electronic device used for looping, sampling, and interweaving music tracks, serving for live recording and re-creating played sounds, tunes, and noises. There are many versions of the device on the market. We use Boss RC-50, because it can be operated by foot when playing our instruments supported on the knee.



InFidelis means UnFaitfhful. It is an instrumental duo in which traditional Polish string instruments, knee fiddles: suka biłgorajska and fidel płocka meet on stage with a looper station.

InFidelis duo draws from tradition but does not stick to the routine. It does not faithfully follow any genre, style or convention. Folk tunes are turned upside down, processed and interwoven with improvisations. Several motifs from various regions of Poland can appear in a single piece. It is not the music of the roots, it is a music of tree crowns – the starting point to the duo’s own artistic pursuit.

InFidelis is based on two very traditional folk string knee fiddles – suka biłgorajska and fidel płocka. The instruments are distinguished for their specific, nail technique of playing. Helena and Marta allow them to sound raw – to howl, to growl, to fiddle squeak; playing techno, reggae and even metal. On stage, the instruments are accompanied by a looper, so every single piece creates a separate live story. Day and night, joy and sorrow , serene melancholy, longing and fulfillment blend together.

Awards and distinctions:

  • In 2014 the duo was granted a scholarship from the Ministry of Culture and National Heritage in recognition of their debut album “The Kolberg Project” which was issued in September 2015 by Karrot Kommando label. The album which consists of music recording and a movie was produced in cooperation with two stop-motion animation artists- Kamila and Mirek Sosnowski.
  • In December 2015 InFidelis received the 2nd Prize at the “Mikołajki Folkowe” Folk Music Festival in Lublin
  • In May 2016 the ensemble received the 2nd Prize and the ”Stormy Applause” Audience Award at the 19th Polish Radio Folk Festival – New Tradition
  • In June 2016 the duo received the 2nd Prize at the Dragon Folk Fest vol. VII in Poznań


Helena Matuszewska – suka biłgorajska, loop station
Marta Sołek – suka biłgorajska, fidel płocka

Project Kolberg

In the area of folk culture – so elusive and giving the opportunity to a variety of interpretations, nothing is permanent, obvious or literal. Even what constitutes its foundations. InFidelis duo and a pair of filmmakers treated the monumental documentation of Polish territories folklore, gathered in the nineteenth century by Oskar Kolberg, as a starting point for artistic exploration.

Projekt.Kolberg is an interdisciplinary work, as the interests of the main investigator were; he documented not only the music of the Polish countryside, but the whole of its culture: rituals, costumes, art.

Etnogramy is an unusual soundtrack, where traditional melodies are played on Polish folk instruments – the Biłgoraj suka and the Płock fiddle, but in versions that were not dreamt of by our ethnographers.

The film “Kolekcjoner“ (“The Collector”), produced in a very artistic technique of stop-motion animation, is an impression on the searches of the ethnographer. It depicts, in a symbolic way, his wanderings around Polish lanes, after songs and ceremonies.

The extraordinary double album is a result of the „Młoda Polska” scholarship from the Polish Ministry of Culture and National Heritage. DVD contains the study film “Kolekcjoner” by Kamila and Mirek Sosnowski. CD is filled with “Etnogramy” – variations on the melodies from Kolberg’s album, arranged by InFidelis duo on Biłgoraj suka and Płock fiddle. Titles refer to the names of traditional folk dances (eg. struck, walked, chased).


Press / promo photos

Concert in PraCoVnia club, Warsaw (19.09.2015, fot. Bartek Muracki)


booking and management:

Helena Matuszewska
mobile: +48 698 626 113