Four hole or three hole Natural Trumpet? 
- Click this link to read why I make my trumpets the way I do - 



GOLDEN RATIO 
FlexTune© Four Hole trumpet

 The FlexTune© trumpets are the ultimate compromise between a fully modern version of a natural trumpet and a historic instrument. The FlexTune© system gives you the opportunity to adjust the proportions of the instrument in different keys in an uncomplicated and logical way. The Golden Ratio mathematical series have been used for the bell design, sleeve length, tapers (where used), etc. The Golden ratio trumpet works so well that it has replaced the standard (basic) flextune trumpet design.

Parts of the FlexTune© natural trumpets explained:













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LEAD PIPE
FlexTune© lead-pipe with modern or baroque receiver

FIRST YARD
Seamless first yard optimized for use with FlexTune© tuning system
--available in two weights--

FIRST ELBOW
Seamless first elbow
--available in two weights--

SECOND YARD
Seamless yard(s) with vent-holes.
--one yard for each pitch/key--
and/or 
Seamless yard without vent-holes
--for use with the second elbow with F/A hole--

SECOND ELBOW
Seamless elbow for D415
or
Seamless elbow for D415 with F/A vent-hole
and
Seamless looped elbow in C415
--elbows for other pitches and tunings (430 and 440) are optional--

BELL
Hand-hammered Golden Ratio (classical style) bell (EHE/HAAS mix) in 0,30/0,35/0,40mm
(--> This bell works best for a trumpet that ranges from D440 to C415)

Additional Information:
My trumpets are made to order. They are available in different bore sizes and wall thicknesses. 
Pitch of E-flat or elbows and yards for 430/440 can be supplied as extras. Custom Engraving and Silver-plated joints, ball, and garland are optional.













Price indication for the Golden Ratio FlexTune© Trumpet in D-C 440/415 (shown above) is €2210,00

Detailed Parts and Prices*

Corpus (one-piece bell, first yard, first elbow) €950,00
Flextune© Lead-pipe and tuning bits €90,00
D (415, 430 or 440) elbow €120,00
D (415, 430 or 440) four hole yard €110
C (415, 430 or 440) looped elbow €220,00
C (415, 430 or 440) four hole yard €110
Yard without holes €50,00

* Please inform about prices. If I am making a set of instruments prices might be lower!

~ For prices and/or more information please contact me ~

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Historic Trumpet 

This instrument has a base-key-length of your choice. There are no vent-holes present. The standard length is D440. This option makes D430, D415 and C440,C430 and C415 possible, too.  This is done by adding length to the trumpet at the lead-pipe side only. This is the historically “correct” way of altering the pitch/key of a natural trumpet.

LEAD-PIPE
Historic Tuning-Bit Set 
plus 
Pigtail Crook for playing in C
--crooks for B-flat are optional--

FIRST YARD
Hand-rolled, historic first yard (with historic joint)

FIRST ELBOW
Hand-rolled, historic first elbow (with historic joint)

SECOND YARD
Hand-rolled, historic yard without vent-holes. (with historic joint)

SECOND ELBOW
Hand-rolled, historic second elbow
or an elbow with (closable) F/A hole (for D415 and D430)

BELL
Hand-hammered Baroque bell (EHE III style) in 0,30/0,35/0,40mm

Hand-hammered Hybrid (classical style) bell (EHE/HAAS mix) in 0,30/0,35/0,40mm

Additional Information:
Historic trumpets have historic (conical) joints. These joints are different than the joints on the FlexTune© system. Historic joints are not meant to be disassembled too often. Sometimes they are even sealed with wax. Therefore it is a little more complicated to offer vent-hole yards and elbows.   
Silver-plated joints, ball, and garland are optional.

~ For prices and/or more information please contact me ~

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Three-to-four hole conversion corpus


TO
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A video with more photos and a sound clip is found here

This corpus turns your short, three-hole trumpet bell into a very nice long trumpet bell. This allows you to play two different trumpets with the same bell. The bell stays unchanged. This system works and sounds great. The corpus can be designed for any trumpet bell and designed for use with or without vent-holes. 

Used with vent-holes it is possible to use all the Flextune© system parts just like it is a full MG Flextune© trumpet.

If the corpus is made for use without vent-holes it can be made from hand-rolled tubes and made with historic (shrunk) joints to facilitate better F’s and A’s and a nice, even overall resistance. That is a good way to be able to do decent “no-hole” practice without having to buy a full, new trumpet. As you might know, the bell is the most labour intensive part of the trumpet making process.

Prices range from €500 (corpus only) to €1600 depending on the amount of pitches chosen. A corpus with crooks and yards in D-C 440 or 415 only is about €1000. 
The price for a full historic corpus for use without ventholes pitched in D and C (and tuned by adding tuning bits and crooks instead of flextune leadpipes) range from about €1200 (for drawn tubes) to €1800 (for handrolled tubes). 

Detailed Parts and Prices for Conversion Corpus Trumpet*

Conv. Corpus (with first yard, first elbow) €500,00
Flextune© Lead-pipe and tuning bits €75,00
D (415, 430 or 440) elbow €120,00
D (415, 430 or 440) four hole yard €110
C (415, 430 or 440) looped elbow €220,00
C (415, 430 or 440) four hole yard €110
Yard without holes €50,00

OR

Conversion Corpus with the rest of the trumpet as a fixed historic instrument optimized for “no hole” playing in D and C 430/415. The pitch and key of this instrument is changed by adding length on the mouthpiece side. Many options available. Choice between seamless or hand-rolled tubing, basic key of instrument, bore size, etc. Great instrument to have besides a good trumpet with vent-holes

* Please inform about prices. If I am making a set of instruments prices might be lower!

~ For more prices and/or information please contact me ~

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Classical Crook Kit for short trumpets.

This kit turns your three hole trumpet into a classical (430) trumpet without holes, and makes “hand-stopping” of those funky notes on the natural trumpet possible. 








Picture: egger corpus (Haas bell) with MG leadpipe, 
F440 elbow, and 430 crooks in D, C and B-flat 

Nicolas Isabelle, a good friend and specialized trumpet player (baroque, classical), asked me to make crooks that go on the lead-pipe side of his short Egger trumpet. His idea was to fixate the trumpet in F440 using the “normal” egger crook system, so the instrument could be crooked down the “traditional way” to all the keys below that using the custom designed classical crooks . 










Nicolas showed me some photos of an original classical trumpet by Raoux and he asked me to make similar crooks for his egger. I did what he asked me to do and it works extremely well. In the higher and lower pitches intonation is very good and the instrument is easy to play and feels secure. The fact that you can reach into the bell with your hand to adjust the pitch is a big bonus. 









What you need to convert your short trumpet into a (more historically correct) classical instrument is a short MG classical leadpipe, a F440 elbow (egger or MG), and classical crooks.

Crooks are available for Egger trumpets only at this moment. Soon I will be offering a Martinus Geelen classical trumpet, which will be less of a compromise than the egger trumpet. This future trumpet will fit these exact same crooks.

Detailed Parts and Prices for the Classical Crook Kit

Short classical lead-pipe €60
F440 elbow €110
F430 bit €50
E (430) crook €175
E-flat (430) crook €180
D (430) crook €190
C (430) crook €200
B-flat (430) crook €210
A (430) crook €220

* Please inform about prices. If I am making a set of instruments prices might be lower!

~ For more prices and/or information please contact me ~

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FlexTune© High Pitch Trumpet

This instrument is designed for F415. It has a slightly smaller bore and a significant smaller and narrower bell than the bells I offer on my other instruments. Adjustable resistance by using different types of leadpipes. 

This trumpet can be used from F415 to E-flat 415 (D440). 













Corpus (bell, first yard, first elbow) €950,00
Flextune© Lead-pipe and tuning bits €75,00
F415 or F392 elbow €120,00
F415 or F392 four hole yard €110
Yard without holes & Authentic Linkage €50,00

Other crooks and yards on request

* Please inform about prices. If I am making a set of instruments prices might be lower!













The Small F415 trumpet next to a standard flextune trumpet in D415


~ For prices and/or more information please contact me ~

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© 2013 Martinus Geelen Natural Trumpets
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