What is "kalkbrenner"

Kalkbrenner is a German surname. Notable people with the surname include:

• Christian Kalkbrenner (1755–1806), German bandmaster or Kapellmeister, violinist, organ and keyboard player, composer and father of
• Friedrich Kalkbrenner (1785–1849), German pianist, composer, piano teacher and piano manufacturer
• Fritz Kalkbrenner (born 1981), German electronic musician, producer and actor, younger brother of Paul Kalkbrenner (born 1977)
• Paul Kalkbrenner (born 1977), German electronic musician and actor, older brother of Fritz Kalkbrenner (born 1981)