Cornet (organ stop)
Encyclopedia
A Cornet is an organ stop
most commonly of principal or flute tone quality that contains multiple ranks of pipes
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The Cornet is primarily used as a solo voice and the ranks of the Cornet follows the harmonic series; 8', 4', 2 2/3', 2', 1 3/5'. The 8' rank is stopped while the other ranks are open. The Cornet may contain from two ranks and up, though three, four, and especially five ranks are the most commonly found.
The version with two ranks eliminates the 8',4', and 2' ranks, but is rarely used and the resulting combination (2 2/3' + 1 3/5') is more commonly called a Sesquialtera
. The three and four rank versions eliminate the 8', 4' and 8' rank respectively. Some Cornets may include more harmonics, such as the seventh (1 1/7') and in rare cases the Ninth (8/9').
Organ stop
An organ stop is a component of a pipe organ that admits pressurized air to a set of organ pipes. Its name comes from the fact that stops can be used selectively by the organist; some can be "on" , while others can be "off" .The term can also refer...
most commonly of principal or flute tone quality that contains multiple ranks of pipes
Organ pipe
An organ pipe is a sound-producing element of the pipe organ that resonates at a specific pitch when pressurized air is driven through it. Each pipe is tuned to a specific note of the musical scale...
.
The Cornet is primarily used as a solo voice and the ranks of the Cornet follows the harmonic series; 8', 4', 2 2/3', 2', 1 3/5'. The 8' rank is stopped while the other ranks are open. The Cornet may contain from two ranks and up, though three, four, and especially five ranks are the most commonly found.
The version with two ranks eliminates the 8',4', and 2' ranks, but is rarely used and the resulting combination (2 2/3' + 1 3/5') is more commonly called a Sesquialtera
Sesquialtera
Sesquialtera may mean:*An organ stop of principal scale comprising ranks at 2' and 1'.*The ratio 3:2, used in medieval music theory.*The plural of sesquialterum....
. The three and four rank versions eliminate the 8', 4' and 8' rank respectively. Some Cornets may include more harmonics, such as the seventh (1 1/7') and in rare cases the Ninth (8/9').