Born in Warsaw, she learned the violin, piano and recorder from age eight. In secondary school she took up contemporary oboe, an instrument she later studied with Marek Mleczko at Cracow’s Academy of Music and Thomas Indermühle at the State High School of Music in Karlsruhe. Having obtained an honours MMus degree, she pursued her fascination with historically informed performance practice, studying historical oboes with Frank de Bruine (initially at the Feliks Nowowiejski Academy of Music in Bydgoszcz and later at the Koninklijk Conservatorium in the Hague) as well as with Paolo Grazzi in the Conservatorio di Verona.

Mazur has played with such early music ensembles as Alta, Capella dell’Ospedale della Pieta, Camerata Cracovia, Altberg Ensemble, Il Tempo, Sabionetta, Royal Baroque Ensemble, Il Giardino d’Amore, Warsaw Chamber Opera, Wrocław Baroque Orchestra, Concerto Brandenburg, Amsterdamse Bachvereniging, Amsterdamse Handelvereniging, Concerto da Camera, Orchestra of the Eighteenth Century, La Tempesta, Arte dei Suonatori, Orchestra Nazionale dei Conservatori Italiani, Armonia Atenea, Volantes Orchestra, Bach Orchestra and Choir of the Netherlands, Trondheim Barokk, Rebaroque, and others. She has given performances throughout Europe as well as China, Hong Kong, and the United States, in venues such as Amsterdam’s Concertgebouw, the Berlin Philharmonie, Tivoli Vredenburg Utrecht, Walt DisneyConcert Hall in Los Angeles, New York’s Alice Tully Hall, NFM Wrocław, and Warsaw Philharmonic, sharing the stage with such outstanding conductors, singers and instrumentalists as Ton Koopman, Paolo Perrone, Julia Lezhneva, Max Emanuel Cenčić, Filippo Mineccia, Antonio Florio, Aksel Rykkvin, Steven Devine, Daniel Bruggen, Jakub Jozef Orliński, Herve Niquet, Jaap ter Linden, Kenneth Montgomery, Alberto Grazzi, Peter van Heyghen, Jos van Immerseel, and Jorg-Andreas Botticher.

Apart from the historical oboe, Mazur also plays the recorder and Renaissance woodwinds. Since 2018 she has been the principal oboe in the Polish Royal Opera’s Capella Regia Polona Period Instruments Ensemble.

She has worked at the Education Department of Warsaw Philharmonic since 2013. In June 2020 she completed Postgraduate Culture Management Studies at SGH Warsaw School of Economics. Since October 2024 she has attended postgraduate coaching and psychology studies at SWPS University.