Small/Medium Bore Bach swap Bell/Slide

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BrianJohnston
Posts: 1165
Joined: Jul 11, 2020

by BrianJohnston »

Does anyone here have experience with swapping small/medium bore bach parts to achieve a middle ground jazz/small orchestral horn?

For example: A Bach 16 Bell with a 34 slide?

I'm looking for something that can do orchestral pops/jazz, downsized 2nd trombone, and maybe the occasional big band gig.

Obviously I'm going to try a bunch of things out to see what works, but I was wondering if there is already a path that tends to work. thanks.
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Burgerbob
Posts: 6327
Joined: Apr 23, 2018

by Burgerbob »

The small bore and large bore setups are so different that they're not really compatible. The slide lengths are the problem.

I'd just play a 36 or a 16
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BrianJohnston
Posts: 1165
Joined: Jul 11, 2020

by BrianJohnston »

[quote="Burgerbob"]The small bore and large bore setups are so different that they're not really compatible. The slide lengths are the problem.

I'd just play a 36 or a 16[/quote]

Thanks.

Better to play a 36 on a jazz gig, or a 16 on an orchestra gig?
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pfrancis
Posts: 172
Joined: Jul 22, 2018

by pfrancis »

Luis Bonilla has a hybridized Bach trombone, 16 & 36. I don’t recall the finer details, but he makes it work!
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Burgerbob
Posts: 6327
Joined: Apr 23, 2018

by Burgerbob »

[quote="BrianJohnston"]<QUOTE author="Burgerbob" post_id="282537" time="1754010947" user_id="3131">
The small bore and large bore setups are so different that they're not really compatible. The slide lengths are the problem.

I'd just play a 36 or a 16[/quote]

Thanks.

Better to play a 36 on a jazz gig, or a 16 on an orchestra gig?
</QUOTE>

36 generally. 16M can definitely work in the right setting
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Doug_Elliott
Posts: 4155
Joined: Mar 22, 2018

by Doug_Elliott »

If you have a 34, that's exactly what it's for. A slightly smaller version of a 36. Not just the slide bore, I'm pretty sure the bell throat is a little tighter too.

And a 36 can have a smaller effect with mouthpiece changes.
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HawaiiTromboneGuy
Posts: 1025
Joined: Sep 03, 2018

by HawaiiTromboneGuy »

Not with a Bach, but I’ve switched parts between a Williams 7 & 8 for fun. Works surprisingly well. Williams 9” bell section with a .500” bore slide makes for some interesting playing characteristics.
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RJMason
Posts: 390
Joined: Jun 05, 2018

by RJMason »

A 16 slide can fit a 36 bell, but it won’t play right. Intonation suffers unless you pull the slide way out and lip everything.

The 34 was supposed to solve that, acting as kind of a bridge for Conn players used to smaller horns. Different bell flare. Some folx have speculated that early 34s were just bad 36s. I’ve played one that felt like that.

But honestly, the 34 is neither here nor there. Sometimes great, sometimes junk, I’ve played two I love and three I hated. I almost bought a magic 34B once, but the valve needed work, and my LT36 and 891ZD covered that ground better (without the myth tax).

Luis used an LT16M with a modified 36 bell for years. Custom bell brace to keep the flange location intact. It worked for him for several decades, but these days he mostly plays an 891.

As for me, when going for this in betweener thing I keep it simple. 891ZD, seamed O’Malley pipe, NY Bach 5 mouthpiece. It gives me what I need between a Bach 8/12 and a 36. Different beast yes, but same spirit.

If I ever change my mind maybe I’ll have O’Malley make me a 34B. That would be epic I bet.
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BrianJohnston
Posts: 1165
Joined: Jul 11, 2020

by BrianJohnston »

[quote="Doug Elliott"]If you have a 34, that's exactly what it's for. A slightly smaller version of a 36. Not just the slide bore, I'm pretty sure the bell throat is a little tighter too.

And a 36 can have a smaller effect with mouthpiece changes.[/quote]

Thanks! This is what I was looking for. As long as people on both sides would be ok with a Bach 34 <EMOJI seq="1f44d" tseq="1f44d">👍</EMOJI>
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Driswood
Posts: 308
Joined: Mar 24, 2018

by Driswood »

[quote="Doug Elliott"]If you have a 34, that's exactly what it's for. A slightly smaller version of a 36. Not just the slide bore, I'm pretty sure the bell throat is a little tighter too.

And a 36 can have a smaller effect with mouthpiece changes.[/quote]

I’ve seen the 34 referred to as a “commercialized” 36. .522 bore with a slightly narrower bell stem. I believe it was a custom order for the principal player in a European symphony. I don’t remember his name. Vincent then added it to his catalog.

I played a 34B for a few years and liked it. I traded it for an Elkhart 6H and some cash, and we were both happy with the swap.
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ngrinder
Posts: 294
Joined: Apr 24, 2018

by ngrinder »

[quote="Driswood"]

I played a 34B for a few years and liked it. I traded it for an Elkhart 6H and some cash, and we were both happy with the swap.[/quote]

I still love that horn, Jerry!

It's funny, my 34B feels more "legit" than 36's I've played. There might be about 5% more response because of the .522 slide, but I really wouldn't go off of that alone to designate this as a "commercial" horn. I believe the entire NY Ballet section played 34s for a season or two. There are a ton of different variables that go into what makes a horn play a certain way, really the only way to know if it works is to try it in a bunch of different settings.

I've done a lot of experimentation re: melding a 36/16, and the best combo I found was replacing the bell stem and flare on a 16 with a custom 8 inch bell made by Miles O'Malley. He has an original Bach mandrel, and he spins very good bells. The specs are so different on both a 16 and 36 that things don't really work pitch and feel wise - I still don't know how Bonilla mated the two.

I do have a factory custom 16m with an 8 inch bell made in the late 70s. It was passed down from a few folks, and plays very well, but someone put extra solder in the bead fold at some point, so the horn plays a lot deader than I'd like. I really wish Bach had decided to put a larger bell on their small horns.
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PVH
Posts: 20
Joined: Jun 15, 2018

by PVH »

[quote="Doug Elliott"]If you have a 34, that's exactly what it's for. A slightly smaller version of a 36. Not just the slide bore, I'm pretty sure the bell throat is a little tighter too.

And a 36 can have a smaller effect with mouthpiece changes.[/quote]

Doug,

What mouthpiece changes have you found to be most effective on a 36 for creating that smaller effect?

Thanks