So Klingt

Jess Blijkers - A Stranger Like Me (EP), Nothing Social (Single, 2025):  

"It is impossible to convey how grateful I am to Claudia Heidegger. Claudia, I had pretty much given up on the idea of releasing music until you reached out. Thank you for gently nudging me, challenging me, holding my hand, taking me seriously, learning with me, and making me braver and more confident.  This woman is kindness and musical genius walking. Go and listen to her music, and if you ever want to record your music: she is your woman! 💪🤩"    

Interview: https://www.arge-musik.at/geschwurbel/soundsourceress-ton-und-musikproduktion-claudia-fisecker-heidegger/ 

Elisabeth Walløe, Lily and there Wildflowers - Gathering of Words (Single, 2025): "Thank you for making my first solo studio experience such a pleasant one!" 

Sia Vaiz - Muscle (Album, 2026): 
"Claudia akka the @soundsourceress will read your mind before you even thought it, and it was a privilege having her produce my album ❤️"

Between Music (Label, Lily and the Wildflowers): "Sehr schöner Song und top produziert. Stimme klingt SENSATIONELL! Gratulation zu dem Release!"

Jess Blijkers - Enough Empathy (Single, 2026):
"Having no formal musical education, I used to feel intimidated by the production process, which I thought highlighted all of the things I don’t know about my craft to find me wanting.  Apart from the released songs I am really proud of, the biggest impact of working with Claudia has been how much more confident I now am about my musical style, taste and abilities. Claudia creates a psychologically safe space where creative intuition rules, and where there are no bad ideas. She challenges her clients, but always gently, without ever using her extensive musical background as a justification that anything “should be” a certain way. Thanks to Claudia, I now really look forward to recording and producing my songs as an essential piece of my creative process, where I feel confidently in the artistic lead!"