Position chart

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bigbandbone
Posts: 602
Joined: Jan 17, 2019

by bigbandbone »

Could someone post a link to a position chart I can download for a dependent double rotor horn?

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I'm going to be play testing a stock Duo Gravis in a couple of days and I have never played a double rotor horn. If it works out I might be buying it.

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Thanks
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afugate
Posts: 671
Joined: Mar 23, 2018

by afugate »

[quote="bigbandbone"]Could someone post a link to a position chart I can download for a dependent double rotor horn?

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I'm going to be play testing a stock Duo Gravis in a couple of days and I have never played a double rotor horn. If it works out I might be buying it.

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Thanks[/quote]

Do you know which valve tuning you're looking at?

The stock second valve is "E" tuning (drops just a half step). There is an available "D" extension that adds tubing length to bring the "E" tuning down to "D".

--Andy in OKC
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bigbandbone
Posts: 602
Joined: Jan 17, 2019

by bigbandbone »

[quote="afugate"]<QUOTE author="bigbandbone" post_id="102624" time="1579275406" user_id="4328">
Could someone post a link to a position chart I can download for a dependent double rotor horn?

-

I'm going to be play testing a stock Duo Gravis in a couple of days and I have never played a double rotor horn. If it works out I might be buying it.

-

Thanks[/quote]

Do you know which valve tuning you're looking at?

The stock second valve is "E" tuning (drops just a half step). There is an available "D" extension that adds tubing length to bring the "E" tuning down to "D".

--Andy in OKC
</QUOTE>

Let's go with E tuning.
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BGuttman
Posts: 7368
Joined: Mar 22, 2018

by BGuttman »

There isn't much use for a 2nd valve in E except for two notes: C now in T5 and B in T6 (with both valves). What you know about F positions should translate just fine.

With a D 2nd valve, low C is now where 4th position is on the Bb side, Db in a longish T2, B in a longish T4 and you may be able to find Bb at the end of the slide.
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dbwhitaker
Posts: 196
Joined: May 16, 2019

by dbwhitaker »

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Baker
Posts: 12
Joined: May 01, 2018

by Baker »

[quote="bigbandbone"]Could someone post a link to a position chart I can download for a dependent double rotor horn?

-

I'm going to be play testing a stock Duo Gravis in a couple of days and I have never played a double rotor horn. If it works out I might be buying it.

-

Thanks[/quote]
J
JohnL
Posts: 2529
Joined: Mar 23, 2018

by JohnL »

Others have posted charts for Bb-F-D; Here is a chart for Bb-F-Flat E; a lot of D-G's are set up that way.

I suppose I should include the standard caution, just in case some newbie bass trombonist reads this thread some day:
The position charts just get you in the general neighborhood. Use your ears and find the spot where the note is in tune without lipping it up or down.
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tbonesullivan
Posts: 1959
Joined: Jul 02, 2019

by tbonesullivan »

I've always wondered how many people use the valves over the third partial regularly. I've been brainstorming, probably a bit too much, on what I'd really "gain" if I decide to pick up an independent bass trombone.

I've also been thinking about about the "G-Valve" movement, and how it may make more sense for a tenor player to have a G attachment than an F attachment, if the valve is looked at primarily as a way to reduce large slide movements.