Karmen Zidar Kos je študij citer (koncertno-pedagoške smeri) na Visoki šoli za glasbo in gledališče München z odliko zaključila pri prof. Georgu Glaslu. Svoje znanje predaja na Glasbeni šoli Nazarje in Glasbeni šoli Slovenj Gradec.
Je zelo uspešna pedagoginja, saj s svojimi učenci dosega visoka priznanja, nagrade in ocene na slovenskih ter mednarodnih glasbenih tekmovanjih. Poleg pedagoškega dela je zelo aktivna članica v Citrarskem društvu Slovenije; svojo energijo in znanje usmerja citrarskemu podmladku.
Je koordinatorica poletnih citrarskih seminarjev in odgovorna urednica revije Slovenski citrar. Nastopa solistično in v duetu s sestro Neli. Sodelovala je z Godbo Zgornje Savinjske doline, Delavsko godbo Trbovlje, Simfoničnim orkestrom RTV Slovenija.
V prostem času je organistka in zborovodkinja v domači župniji ter zborovodkinja Mepz Ljubno ob Savinji.
Karmen Zidar Kos completed her studies in zither (concert and pedagogical direction) at the Munich University of Music and Theatre with honors under the guidance of Prof. Georg Glasl.
She teaches at the Nazarje Music School and the Slovenj Gradec Music School. She is a very successful teacher, as her students have achieved high recognitions, awards and grades at Slovenian and international music competitions. In addition to her teaching work, she is a very active member of the Cither Society of Slovenia; she directs her energy and knowledge to young zither players.
She is the coordinator of summer zither seminars and the editor-in-chief of the magazine Slovenski citrar. She performs solo and in duet with her sister Neli. She has collaborated with the Upper Savinja Valley Band, the Trbovlje Workers’ Band, and the RTV Slovenia Symphony Orchestra.
In her free time, she is an organist and choirmaster in her home parish and choirmaster of the Mepz Ljubno ob Savinji.