The echo cornet has a mute chamber (or echo chamber) mounted to the side acting as a second bell when the fourth valve is pressed. The second bell has a sound similar to that of a Harmon mute and is typically used to play echo phrases, whereupon the player imitates the sound from the primary bell using the echo chamber. Short History: The cornet was invented by adding valves to the post horn in 1814.  The valves allowed for melodic playing throughout the register of the cornet.Trumpets were slower to adopt the new valve technology, so for the next 100 years or more, composers often wrote separate parts for trumpet and cornet. The trumpet would play fanfare-like passages, while the cornet played more melodic passages. The modern trumpet has valves that allow it to play the same notes and fingerings as the cornet. This item is in the category "Musical Instruments & Gear\Brass\Cornets". The seller is "musicsh32" and is located in this country: US. This item can be shipped worldwide.