Author: kerryklari
Date: 2022-02-20 15:34
I am reading Oskar Kroll's "The Clarinet". In the Technical Development chapter (p41) it says "Since 1941 the firm of F. A. Uebel has been making clarinets with a new mechanism for the production of a correctly-tuned forked f'". It goes on to describe and illustrate the mechanism, which consists of a smaller hole for the index finger to flatten the f and some keywork modifications to deal with the side effects of this.
The book is rather old now. It was written in 1944 though not published till 1965 (in German - 1968 in English), at which point the text was "revised and enlarged". Some of the technical developments covered are described as unsuccessful, or likely to be so, though there is no way of knowing whether those judgements were made by the author or the person doing the revisions. There is no comment about the Uebel mechanism, it's simply presented as a good idea.
I have an Adler that dates from the early 1960s, so it predates the publication of the book. It has most of the mechanism illustrated in the book, but not the smaller hole, and it does not play forked f' in tune. Does anyone know anything about this? Are there still German system clarinets out there that do play forked f' in tune, or was it another development that was ultimately unsuccessful?
The clarinet fingering chart on woodwind.org says the forked f' fingering works on Austrian clarinets, but I presume that is achieved by changes in the bore rather than to the mechanism?
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The Clarinet BBoard
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