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The mock trumpet is a 
Mock trumpets are keyless reed-pipes, closed on one end by the natural joint of the cane and wrapped in leather. The reed is idioglottal, meaning that it is a tongue cut but not detached from the reed itself. The reed was placed on the upper side of the instrument and vibrated against the upper lip; the pipe had six tone holes on top and one in the back. Early chalmeaus used idioglot reeds, as shown in the debate as to whether to install reeds up or down. Rice said the idioglot reed was installed with the split going from the top downward (anaglott).
Documented music for the mock trumpet primarily includes tutors and method books, indicating that this was an instrument studied in the Western Classical tradition.
File:Zurna, bülban, and koşnai, Russian Turkestan 1865 to 1872.jpg, Example of an idioglotic reed pipe with a wooden body (center instrument), Central Asia, circa 1869. From the left: zurna, bülban and dozaleh.
File:Sipsi.jpg, Example of an idioglot reed in a reed body, the sipsi.
Reclam_de_xeremia.jpg, Reed pipes in which the idioglot reeds were carved into the same reed as the rest of the pipe. Reclam de xeremies.
File:Strohhalmchalumeaux Mersenne.jpg,
single-reed
A single-reed instrument is a woodwind instrument that uses only one reed to produce sound. The very earliest single-reed instruments were documented in ancient Egypt, as well as the Middle East, Greece, and the Roman Empire. The earliest types o ...
woodwind instrument popular during the second half of the seventeenth century, especially in England. By the 1720s, the mock trumpet was documented in use in the New World.
The mock trumpet predated the chalumeau and may be one of the primary predecessors of both the chalumeau and clarinet
The clarinet is a musical instrument in the woodwind family. The instrument has a nearly cylindrical bore and a flared bell, and uses a single reed to produce sound.
Clarinets comprise a family of instruments of differing sizes and pitches ...
. Thurston Dart wrote that the mock trumpet was the name for the chalumeau in England, and that music was published for it in 1698.
Mock trumpets are keyless reed-pipes, closed on one end by the natural joint of the cane and wrapped in leather. The reed is idioglottal, meaning that it is a tongue cut but not detached from the reed itself. The reed was placed on the upper side of the instrument and vibrated against the upper lip; the pipe had six tone holes on top and one in the back. Early chalmeaus used idioglot reeds, as shown in the debate as to whether to install reeds up or down. Rice said the idioglot reed was installed with the split going from the top downward (anaglott).
Documented music for the mock trumpet primarily includes tutors and method books, indicating that this was an instrument studied in the Western Classical tradition.
Marin Mersenne
Marin Mersenne, OM (also known as Marinus Mersennus or ''le Père'' Mersenne; ; 8 September 1588 – 1 September 1648) was a French polymath whose works touched a wide variety of fields. He is perhaps best known today among mathematicians for ...
's illustration of a chalumeau made from wheat stalks, split to create a idioglot reed.
Tuning
The instrument as played in England was in the key of G. Content from ''The Fourth Compleat Book for the Mock Trumpet'', "published between November 1706 and October 1708" showed the available notes to be G4, A4, B4, C5, D5, E5, F5, G5. (Converted to scientific pitch notation.) While this is almost adiatonic scale
In music theory, a diatonic scale is any heptatonic scale that includes five whole steps (whole tones) and two half steps (semitones) in each octave, in which the two half steps are separated from each other by either two or three whole steps, ...
in G major, it would need an F# for that. Rather this is C major, with the music included written in that scale.
References
{{Single reeds Single-reed instruments