Talk:Horn of Command/@comment-26946560-20150830195731/@comment-25869554-20150831130648

Ah, different assets folders :P

AppData\Roaming\.minecraft\mods\[1.7.10] The Lord of the Rings Mod B24.4.jar\assets\lotr\sounds\item\horn.ogg

You'll have to find this using a program such as 7-zip though, as the '.jar' archive needs to be opened to access the sound.