The sudden transition from mouthpiece to neck has more than once drawn attention. It looks odd, indeed, the wideness of the mouthpiece chamber meeting the narrow entrance of the neck.

It is reported that some saxophonists have experimented with removing this transition by narrowing the inner size of the mouthpiece chamber to the size of the neck. Correct intonation then becomes impossible: the volume of the mouthpiece chamber is needed dearly. The Selmer company, among others, equipped its later models with an inner rounding-out at the entrance of the neck, although this is still a rather small one.

The German Fritz Seiffarth, about whom we know very little 1 apart from that he submitted the German patent nr 593340 in december 1932, must have thought similarly, but more radically. In his patent he makes quite an interesting proposal. Seiffarth describes a mouthpiece and neck without any inner ridges or edges. He claims

'das Instrument einen vollen, weichen Ton erhält, also ein Tonveredlung erzielt wird [...] und daß das Instrument wesentlich leichter als mit einem normalen Mundstück anzublasen ist.'

the instrument to have a full and tender sound and so produces a refined tone [...] that the instrument is substantially easier to blow as compared to with an ordinary mouthpiece.

'Erreicht wird dies dadurch, daß die eingeblasene Luft aus dem Kessel des Munsstückes mittels einer düsenförmigen Bohrung nach dem eigentlichen Instrument übertritt. [...] Plötzliche Querschnittsänderungen und den Luftstrom störende Vor- und Rücksprünge sind vollkommen vermieden.'

This is accomplished by a nozzle-like shape guiding the air from the mouthpiece chamber into the instrument itself. [...] Sudden changes in transverse section and protrudent shapes hampering the air stream have been done away with completely.

As can be seen in the drawing, the construction is fairly complex and excludes the use of any other than a matching pair of mouthpiece and neck. This certainly must have been part of the reason for the construction to not be viable.

(Click here for the Seiffarth patent in full.)

Patent Seiffarth

When I reinvented this construction around 1995 (certainly I should have payed a visit to the patents library earlier!) I could in retrospect confirm Seiffarth's claims. However, the same can be achieved in an acoustically slightly less perfect way which has the advantage that now conventional mouthpieces can be used.

This is what I did. Besides tapering off the rim of the neck itself, I slanted the entire entrance to the neck. This creates a more fluent volume transition between the mouthpiece chamber and the neck. In order to be effective the oblique part does have to have a certain length. For an alto, say, about a centimetre.
Can you add this shape to a standard neck? No, you can't, because the result will be too long to accommodate the mouthpiece correctly. So you'll have to shorten the neck. Can you just cut off a centimetre? No, you can't. You will have to adapt the neck's profile as well. But then it works well, just as Seiffarth described 90 years ago. Especially the bell tones profit.
Can I make such a neck for you? Yes, I can!

october 2020

A certain Fritz Seiffart was conductor of the «Blasorchester Stadt Kreuztal» from 1928 till 1932. In September 2021 André Becker answered me on behalf of the ochestra: 'Bei uns war ein Fritz Seiffarth kurz vor dem Krieg Dirigent. Seine Instrumente waren Klavier und Geige. Wir haben mit älteren Musikern und und auch mit Nachfahren von "unserem" Fritz Seiffarth gesprochen. Wir glauben, dass Sie eine andere Person meinen.'