A tenor horn is similar to a british euphonium in the sense that they are both conical tubing where a british baritone is cylindrical (predominantly).
To my ear a tenor horn sounds brighter and more compact than a baritone. As demonstrated through these three videos. (Different players, different years but it displays the general concept)
This is The Swan played by a tenor horn:
http://youtu.be/reo0V9WeD3M
Same piece but on British Baritone
http://youtu.be/3rV2ZwyGdY8
Same again but on British Euphonium:
http://youtu.be/mXMKUU8KdqM
(I couldn't find a video where the piece is played by an American Euphonium)
I believe both tenor and alto horns are pitched in Eb (I always thought "alto horn" is the American reference to the horn, where "tenor horn" is the british name, could be wrong there), and if you have found them in the same key, it's probably because you found brass band music, where all the instruments are in the same key.
The euphonium/trombone/baritone mouthpiece will all be the same (shank size difference), but the tenor/alto mouthpiece will be smaller like a mellophone/cornet mouthpiece. I started a thread in General Discussion of Anything, and EuphGirl05 gave me that information, if you find that thread (it's pretty close to top entitled "Tenor Horn Mouthpiece", you could PM her with questions.
Last edited by Msan1313; 07-14-2014 at 11:32 AM.
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