One of only a rare few concert Harpists in the world who is not only a gifted artist on the Modern, but as well on the Celtic, Electric and Baroque Harps. Her solo debut at the National Philharmonic in Warsaw took place in 1990.

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As a soloist, she has performed with such noted artists as Francisco Araisa, Brigitte Balleys, Massimiliano Cialdi, Łukasz Długosz Claudio Ferrarini,  Jose Maria Florencio, Chikara Imamura, Agnieszka Duczmal, Adrew M.Kurtz, Atsushi Nukii, Jerzy Maksymiuk, Daniel Stabrawa, Tomasz Strahl, Małgorzata Walewska, Tadeusz Wojciechowski,

She has given a multitude of solo recitals and played with orchestras worldwide.

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Malgorzata Zalewska commenced a permanent affiliation with the Warsaw Chamber Opera in 1994. She has made about50 various recordings for Decca, Dux,  EMI, Hungarton,  Pro Musica, Philips, Sony and the Polish Radio and Television. At the request of the CAMAC harp producer Joel Garnier, Zalewska took part in the promotional campaign for the Atlantide Harp, which resulted in her picture on the cover of prestigious magazines HARPA and HARP INTERNATIONAL. 

In 2005, the artist's solo album Harp Solo (DUX) was released, co-financed entirely by the Ministry of Culture and National Heritage. 2007 saw the premiere of the concert suite Master&Margarita for harp and symphony orchestra by Gary Guthman and the release of the CD album of the same title (DUX), which reviewers highly rated.

In February 2018, the premiere of a concerto for harp and orchestra entitled Concerto Romantico took place, and in 2021 the premiere of The Traveler suite, works composed especially for it by Gary Guthman, took place.

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She was the initiator, soloist, and producer of the "Classics Meets Jazz" project (2020), which he watched online with over 2,000 viewers at the same time as part of the "Culture online" program.

The album, containing a chamber suite for soprano, flute, cello, and harp, was released by Orphee Classics on a disc entitled "Gary Guthman - The Traveler and Tadeusz Paciorkiewicz - Triptych and Improvisation" while Concerto Romantico was featured on an album entitled "Harp and Trumpet Concertos" released by DUX (2023).

For the last 22 years, the harpist has represented Poland in Poland and abroad on frequent orders from the Ministry of Foreign Affairs and the Chancellery of the President and Prime Minister of the Republic of Poland and is a scholarship holder of the Minister of Culture and National Heritage.

She is the ambassador of CAMAC harps.

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