A while ago, a beautiful horn came into the workshop. The owner, proud as punch, announced that his horn had been “overhauled” by a friend who enjoys repairing and overhauling instruments in his free time. He hadn’t been charged for any labour, and was simply asked to pay his mate back for the parts used.
The owner of the horn stated that it didn’t play as well as he would like, and asked if I could please take a look at it to see if I could find what was wrong with it. He was convinced it would only be a small issue or two.
After careful inspection, it became very clear that this horn was rife with problems. The owner’s face went from a happy pink colour to a very concerned pale colour in a matter of minutes, as we discovered more and more issues with his instrument.
As I discussed this issue with some other professional repair technicians around the world, it has become quite obvious that more and more people work on instruments for fun. As such, there isn’t anything wrong with that. People work on cars, they work on lawn mowers, boats, you name it.
But… when they are only hobbyists, would you really want them to completely overhaul your prized instrument? Analogy: would you really let them fully overhaul your car if they aren’t a qualified mechanic?
One of my colleagues referred me to an article he wrote a few years ago and he kindly let me repost it here. It outlines pretty much exactly what I am trying to say as diplomatically as possible here: “Hobbyists, Stop Misinforming People and Wasting Their Time”.
I hope you enjoy reading it.
Reblogged with permission of the owner, Carlo Cennamo from Cennamo Woodwinds. Original post at http://www.cennamowoodwinds.com/blog/november-02nd-2015
Although the horn was “overhauled”, it was overhauled by someone that made absolutely no attempt to do the job properly. But they did buy the most expensive pads on the market to do the job. Why? Presumably because it made the horn easier to sell. But so what? Not a single key on the horn was refit. Not only are the keys loose, not one rod fits inside its post correctly; there is concentric play inside every post. The first two photos below show the F key in the lower stack and you can see just how much slop is between it and the F# key next to it. Every single key on the horn is like that. It’s a mess, and it’s a shame.
So why does this matter? Do loose keys cause intonation issues?
Loose keys wander all over the place. The concentric play on the rod causes key deflection, and they ruin properly seated pads by blurring an otherwise well-defined pad seat. And that causes both intonation and playability issues.
Know what else cause intonation issues? Improperly vented keys. The lower stack was significantly over-vented. That means the keys were too high. This can throw the octaves way off and playing in tune with an ensemble is virtually impossible.
Let’s look at the pad work. You want to show off your super expensive pads, right? Well, Roo pads have very thick skins and require a deeper seat than tanned kid leather. These pads had seats that were too shallow, and shallow seats in Roo pads never hold. And, due to their extra firm felt, if the tone holes are not level, you will never get a proper seat in a Roo pad. And none of the tone holes are level. None of them.
Look at the first two pictures below. They show the front and back of the G# tone hole respectively. See the light? There are low spots in the front and back. And guess what? There was a significant leak in the front of the G# pad. The third picture shows the low D tone hole. See that depression? The pad was, not surprisingly, leaking significantly. You’d need very good luck to seat a pad on that tone hole.
And the last picture shows a loose spring.