Marcin was born in 1992 in Cracow, Poland. He started his guitar classes at the age of 7 under the supervision of Adam Makowski. He continued his education with Wlodzimierz Lerner, Alina Gruszka, Marcin Dylla and currently Paolo Pegoraro. In recent years he has been working on his PhD thesis under the supervision of Prof. Ewa Jablczynska at the Jan Dlugosz University in Czestochowa, Poland.

He is a laureate of over 50 prizes Polish and international guitar competitions in Austria, Croatia, Germany, Italy, Spain, Serbia, Ukraine, USA and others.

Marcin Kuzniar gave concerts among others in Austria, Germany, Italy, Montenegro, Serbia, Republic of South Africa and USA. He cooperated as a soloist with the Symphony Orchestra of the National Philharmonic of Ukraine, the Montenegrin Symphony Orchestra, the AUKSO Orchestra, the Rzeszow Philharmonic Orchestra, the Silesian Philharmonic Orchestra, the Cracow Chamber and the Silesian Chamber Orchestra.

He has been granted several awards and scholarships for his musical achievements, like the Polish Minister of Culture and National Heritage scholarship Young Poland, the Polish Minister of Culture and National Heritage award, and the Polish Minister of Science and Higher Education scholarship

In 2018 Marcin Kuzniar published his debut album titled Song Without Words, which consists of works from the 19^th and 20^th century.