Carlsfelder Concertina bụ otu n'ime ndị German Concertina ezinụlọ mepụtara Carl F. Zimmerman, dabere na mbụ Chemnitzer Concertina nke Carl Friedrich Uhlig. Zimmerman, bụ́ onye Carsfeld, Saxony, kpughere ngwá ọrụ ya ná Ngosi Ngwá Ọrụ nke 1849 e mere na Paris, na Ngosi Ngwá Ọrụ nke 1851 e mere na London, nakwa na Ngosi Ngwá Ọrụ nke Mba Nile e mere na 1853
na New York. Zimmerman gbasawanyere na Uhlig mbụ 1- na 2-ahịrị square concertinas, na-emepe emepe a 3-ahịrị chromatic bisonoric ngwá, n'ikpeazụ na-ere ya azụmahịa na ngwá emeputa Ernst Louis Arnold na kwagara na United States, ebe o mesịrị ghọrọ ama maka ya eriri ngwá mepụtara, na autoharp.