Carmen Amrein completed her diploma in Hackbrett, Salterio, trad. German folk music, Zither and elementary music education at the University of Music and Theater, Munich with high honors in 2010. Amrein is teaching Hackbrett, Salterio, Hammered Dulcimer, Zither, elementary music education for almost 20 years now.

Amrein makes music with great pleasure as a soloist or in small and large ensembles, such as the Hackbrett / harp duo Weltenbummler. In addition to Germany, she also performed in Switzerland, Austria, the Czech Republic, Ireland, Great Britain, Canada and the USA. The artist spent the 2011/12 school year in Canada and the United States and was frequently involved in concerts, festivals and classes. After a short parental leave, Amrein has been back on stage since September 2018 with her children's concert concept Bambini Concerts.

At the beginning of 2021, she and her fellow students Komalé Akakpo and Franz Anton Peter launched the Hackbrett Online Festival and the Hackbrett workshop online days. Amrein taught at different online festivals such as Hackbrett Online Festival 1.0 and 2.0 and Nutmeg Dulcimer Festival in Oct. 2021 with Hackbrett, Hammered Dulcimer and Salterio.