Hi, I’m Allison Dettloff. I’m an instrument repair technician and bassoonist studying instrument repair technology in Red Wing, MN. Read more here.

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Making a clarinet A/D ring key

OH boy, this is one of the most satisfying projects I’ve gotten to do here yet. Knockpins were rad as hell, but putting together a whole key from its disparate components has been a ton a fun. I started with a Bb clarinet’s A/D ring key upper bridge, ring, and key, and a solid brass…

Flute key spud threading

I think it’s wonderful that the threaded nubs inside of flute keys to hold pads in are called spuds. About half of the spuds on this flute had been threaded and the other half weren’t. How odd! I’ll be threading all of them so they can hold pads in with a washer and screw instead…

New hinge rod

Yikes! The low F/C key and low Ab/Eb key sit on the same hinge rod, and this one is quite loose. The hinge tubes are too big for the rod, so the lateral play will cause inconsistent closure of the pad and some weird key action for the player. I fixed this by making an…

Bent clarinet keys

I’m so excited to work on this clarinet! It’ll be getting a full repad, but before I start with that, I want to make sure the keys are all in alignment. The alternate Bb/Eb key was looking pretty funky, so I bent it back before disassembling. I could see that it had been bent with…

Clarinet crack pinning

This must be the scariest thing I’ve done yet! Drilling straight into a wooden clarinet body is stressful. This one is just practice, but if we imagine a crack from the C trill key’s tone hole to the tenon, we would want to insert a carbon fiber pin into the body to bring back stability…

Trumpet leadpipe replacement

The red rot on this trumpet’s leadpipe is pretty gnarly. This means that the zinc has separated from the copper in the brass, leaving these little spots of weak copper that will eventually cause holes or tears in the brass. Since there’s not much we can do for it at this point, I’m replacing the…