Katalin Kállay studied viola at the Leó Weiner Conservatory with Sándor Papp, and recorder with László Czidra, then she continued her studies as a musicologist at the Franz Liszt Academy of Music. In the meantime she studied early music and recorder with László Lőrincz at Szeged University. She has attended at master classes by Peter Holtslag, Gábor Prehoffer and Anneke Boeke. Katalin Kállay is a member of several early music ensembles such as Camerata Hungarica,  Mandel Quartet, Excanto, Marquise, Sebastian Consort,  Musica Profana,  Savaria Baroque Orchestra, Tercina, Rosella, and she has performed as a guest musician in London, Kimbolton (Kimbolton Castle), Brixworth, Welliborough, Weimar (Hochschule für Musik „Franz Liszt”), Regensburg, Belgrade, Innsbruck, Trier, Nicosia, Ljubjana, Venice. She is a regular guest at prestigious international music festivals: Budapest Spring Festival, Gödöllő Spring Festival, Budapest Bach Week, Early Music Festival in Csíkszereda, Börzsöny Baroque Festival, Zemplén Festival, Valley of Arts Festival, Seviqc Brezice Early Music Festival (Ljubljana), Tage Alter Musik in Herne,  Ars Antiqua Europae In Via Gothica, Varna Summer International Music Festival. She has given regulary concerts in the most significant music halls of Budapest such as Big Concert Hall of Academy of Music, Old Academy of Music, Palace of Arts: Festival Theatre, BMC (Budapest Music Center), Óbuda Social Circle, Marble Hall of the Hungarian Radio, Nádor Hall, Bartók Béla Memorial House. Katalin has worked with such musicians as László Czidra, Pál Németh, György Vashegyi, Tamás Vásáry, Philip Pickett, Penelope Rapson (Fiori Musicali, England), Gwendolyn Toth (Artek, New York), Peter Zajíček (Musica Aeterna, Bratislava). Currently she teaches recorder and chamber music at the Leó Weiner Conservatory (Budapest), at the Béla Bartók Conservatory (Budapest), at the Mária Ward Conservatory (Budapest), at the University of Szeged Faculty of Music and gives master classes at the Renaissance and Baroque Week in Győr. She also writes music reviews and concert guides for the Palace of Arts, „The Piano” concert series, the Concerto Budapest, the Muzsika and the Müpamagazine.