Description
100%-to-scale model of a York Band Instrument Co. model 62 "Al-Tru" tenor trombone-shank bugle, alto/tenor horn mouthpiece, intended to be very close to the original design.
The cup profile is similar to the Yamaha 37C4 or Satoh Shoji TMP-AH, with a tenor trombone shank instead of the trumpet shank often seen for alto/tenor horn mouthpieces. It's not as extreme as some alto/tenor horn pieces, such as the 2010s KHS-Jupiter model.
This was an unusual find, purchased for the Amati-Kraslice ABG-221 cavalry-style bugle, pitched in F (which inspired the "Ceremonial Bugle").
Note that the ABG-221 receiver opening has a diameter measuring 12.07~12.11mm / 0.476~0.477".
The Materialise Gray Resin prints ordered are shown fitted with the ABG-221 for reference.
The York 62 gives the Amati bugle a rounder, darker flugelhorn tone (as opposed to the brighter "hunting horn" sound of the stock A54 mouthpiece, or the much brighter A51 natural trumpet mouthpiece). The Amati ABG-221 does not have perfect intonation, but the York 62 slots relatively solidly for "Taps". For a trumpet player, it is rather difficult to clearly articulate fast bugle calls on the ABG-221 with York 62 - use the shallower ones then.
The cup and shank combination might also be useful as a transition piece for doubling on trombone. Al Cass, Chasons, Lausmann, and others have made these sorts of mouthpieces to assist brass musicians crossing over to/from trumpet and trombone. The York 62 could perhaps help trumpet, mellophone, French horn, or alto/tenor horn players to double on trombone or small-shank euphonium.
Note the York 62 shank opening outer diameter of 0.4357" / 11.067mm is larger than the 0.4220" VennCAD default standard for small-shank, tenor trombone mouthpieces.
If you haven't encountered the "Ceremonial Bugle" before, it is a bugle-shaped metal device, with an electronic speaker insert used to simulate bugle calls, mainly "Taps" at military funerals. When the speaker insert is removed, they can be played normally, but they come with a shallow-cup, ill-fitting mouthpiece. This setup does not sound good due to their shoddy construction/prone to leaks, compared to the well-made Amati-Kraslice original version.
No dimensions have been adjusted or modified for printing; the price is intended to defray scanning costs. For print verification, the STL has overall length 59.51 mm / 2.343", and [greatest] outer diameter of 28.13 mm / 1.107".
Note that the shank opening is somewhat thin and fragile with resin prints.
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