althorn

alt·horn

or Alt·horn  (ălt′hôrn′)
n.
Any of several upright, valved brass wind instruments used especially in bands.

[German : alt, alto (from Italian alto; see alto) + Horn, horn; see alpenhorn.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

althorn

(ˈæltˌhɔːn)
n
(Instruments) a valved brass musical instrument belonging to the saxhorn or flügelhorn families
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

alt•horn

(ˈæltˌhɔrn)

n.
a valved brass musical instrument that is the alto member of the cornet family.
[1855–60; < German, = Alt alto + Horn horn]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
Translations
trombón alto

althorn

nB-Horn nt
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
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References in periodicals archive ?
Halsey Stevens, Sonata for Horn and Piano (1953); Paul Hindemith, Sonata fur Althorn in Es und Klavier (1943/1956); Bernard Heiden, Sonata for Horn and Piano (1939); Paul Hindemith, Sonate fur Horn und Klavier (1939).
The Hindemith Althorn Sonata, also less frequently played, features opening and closing movements with some of Hindemith's most tender writing, made more tender by Deane's sweet sound and tasteful vibrato.
Health Department spokeswoman Alexandra Althorn told the (http://www.nypost.com/p/news/local/city_schools_plan_UoW7ke5l2KRwg43nHzt97H) New York Post that an average of 1 percent to 2 percent of parents at each school chose to have their daughters opt out of the program.
Ivers, Department of Counseling, University of Texas at San Antonio; Amy Althorn, Department of Leadership, Counselor Education, Human and Organizational Development, Clemson University; Deborah W Newsome, Department of Counseling, Wake Forest University.
deppeana) and agricultural land and part of Trinidad y Llano Salas (235 ha, 24[degrees]07'17"N & 100[degrees]06'27"W) which is characterized by the halophyte vegetation of althorn (Koeberlinia spinosa) and four-wing salt bush (Atriplex canescens).
Network series: "Memory Power: Supercharge Your Mind to Instantly Recall Names, Ideas & Information" presented by Blaine Althorn Southfield Center for the Arts Contact: (248) 623-8484 or www.yesmidwest.com Ask about special discounts for Chamber members
28 (Trumpet, Althorn in Eb and Baritone) Boerlin Suite of Miniatures Bogdan, Valentin Incidental Brass Music Bond, Victoria Trio for Brass Booren, Jo van den Brass Trio, Op.
Network series: "Memory Power: Supercharge Your Mind to Instantly Recall Names, Ideas & Information" presented by Blaine Althorn (afternoon and evening sessions available) Southfield Center for the Arts Contact: (248) 623-8484 or www.yesnetwork.com Ask about special discounts for Chamber members
His compositional output is vast and his most often performed works include 26 late instrumental sonatas (1935-1955), with a curious Sonata for Althorn (1943) in the middle.
(1) There he completed tine; score to his Symphonic Metamorphosis on 29 August 1943, followed closely; by his Sonata for Althorn and Piano.
I refer to these instruments as "althorn" and "waldhorn," respectively, as explained below.
Germans may call it Altkorno, and in the Netherlands it is an Althorn. In the United States it is an alto horn; in Britain, a tenor horn.