About us

Accordion Doctor is an accordion repair and restoration business owned and operated by Ole Carstensen and Monika Hofer. We specialize in repairing, restoring and selling all sorts of second hand diatonic button accordions as used in various folk musik styles around the globe. We are located in Almere, The Netherlands.

It all began on the beautiful Island of Föhr in northern Germany. Since I can remember music has always been a part of my life. I grew up in a musical household where my father played fiddle and my mother piano. Early on I started with classical piano lessons but for some reason it never caught on. It was not long after I stopped playing piano that I taught myself how to play an old button accordion we found on my grandmothers attic. Ever since that moment I have been crazy about Irish accordion music.

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From my first no-name accordion I soon moved on to a Hohner black dot and finally settled on a Castagnari Ciacy almost 20 years ago. I have been part of several bands in Germany, but stopped after relocating to The Netherlands. In the Netherlands I enjoy playing sessions and gigs here and there.

Having always been curious of understanding how things work, I started taking apart old accordions. This started the idea of repairing and tuning accordions. It’s truly amazing to see how the instrument is transforming step by step and a long forgotten glory is restored. Some accordions haven’t been played for decades, and after spending countless hours in the workshop, I am the first to play and hear them. This is truly a magical moment and the driving force behind my restoration work.

When I’m not in the workshop, giving lessons or playing music, I like spending time with my little daughter as well as fishing and various sorts of crafting. I graduated with a PhD in Theoretical Chemistry from the University of Kiel in 2014.

Cheers – Dr. rer. nat. Niss Ole Carstensen