Jerzy Piotrowski, also known as Keta[1] (born 9 February 1950[2]) is a Polish jazz-rock drummer.

He has played on LPs for many artists, including Czesław Niemen, SBB, Kombi, Young Power, Pick Up, Krzysztof Ścierański, Ireneusz Dudek, Dżem, Martyna Jakubowicz, and Stanisław Sojka.

[3] He is the author of the textbook Szkoła na perkusję.

Between 1990 and 1994, he conducted percussion workshops in Puławach.

In 1994, he immigrated to the United States.