Hubert Giziewski and Paweł Sulej completed their music studies at Poland's most important music institution of higher education, the Fryderyk Chopin Academy of Music in Warsaw and already belong among the most distinguished Polish musicians of their generation.

During the many years of their artistic education, they have worked with such prominent artists as Włodzimierz Lech Puchnowski, Jerzy Jurek, Jerzy Łukasiewicz, Fridrich Lips, Yuri Shishkin, and received numerous honors and prizes at prestigious festivals and music competitions, both in Poland and abroad.  Their most important prizes include awards from festivals in Stalowa Wola (1993), Chełm (2001), Mława (2005) in Poland, as well as from competitions in Castelfidardo (2005) and Ibla-Ragusa in Italy (2005).

As soloists and chamber music players, Hubert Giziewski and Paweł Sulej appeared at the most famous concert halls and artistic centers in Poland (including the National Philharmonic in Warsaw, and the Witold Lutoslawski Concert Studio S1 of the Polish Radio) and around the world (the Suntory Hall in Japan, the Carnegie Hall in New York, to mention just these two). In addition, they performed in concert in many countries around the world, including: Bulgaria, Germany, Italy, Lithuania, Morocco, Saudi Arabia and USA.

Both musicians perform on Italian instruments made by master instrument-builders from the Pigini company.

The repertoire of the eminent Polish accordion duo of Hubert Giziewski and Paweł Sulej includes several ongoing artistic explorations: „Grand Transcriptions",  „Polish & European Contemporary Music," „Musica Sacra,"  „Dances of the World," and „Sacrum & Profanum", with musical compositions written by such masters and eminent composers as: Johann Sebastian Bach, Leon Boëllmann, Cesare Franck, Modest Mussorgsky, Aram Khachaturian, Witold Lutosławski, Astor Piazzolla, George Enescu, and reveals a whole palette of artistic and stylistic possibilities provided by the contemporary concert accordion.

The artistic works of the above mentioned composers and others, thanks to the extraordinary coloristic palette, technical and sonic qualities of the modern accordions gain truly exceptional and unique values in the somewhat unusual setting of two accordions. This music performed by the accordion duo immediately absorbs the attention of the listeners and is always received with a great enthusiasm by the audiences on all the continents.

Jeffrey James, Editor, International Composer, described Harmonium Duo after their April 2006 concert at Carnegie Hall:  “Anyone, who thinks the accordion is either dull or not really an instrument fit for classical music hasn’t heard these boys tear up. Performances like this leave little room for anything other than superlatives…I cannot say enough about the high quality of their musicianship and almost inhumanly good integration of sound, so I’ll just leave things at hoping to hear them again very soon”.