She began church music studies at HMT Leipzig and sang in a wide variety of choirs and ensembles, including the German Youth Chamber Choir, the Stuttgart Chamber Choir, and the World Youth Choir. During her studies, the desire to make singing her main instrument and career grew steadily. After further organ and vocal studies at HfM Saar (under Prof. Ruth Ziesak), she moved to Stockholm in 2021, after winning auditions for permanent employment and member of the Swedish Radio Choir. At the same time, she continued her master studies in singing at KMH Stockholm under Prof. Bo Rosenkull).
Kathrin is the recipient of several scholarships: sponsor award winner from the Rotary Club in Kappeln, scholarship holder from the Nikolaus Reiser Foundation and the Richard Wagner Association in Saarbrücke, and in 2023 she was the highest ranked of all singers at the national scholarships of Swedish Royal Academy of Music.
In 2023 she won 1st prize and the audience prize at the 12th International Telemann Competition in Magdeburg and was a finalist at the international competition "Voice of the Sea" on Åland.
In 2024 Kathrin, won the Solistpriset ("Soloist prize"), the biggest prize awarded by the Swedish Royal Academy of Music for young musicians, being the first singer in 16 years receiving that honor.