Trumpets
The trumpet is a lip vibrated brasswind instrument commonly used in classical and jazz ensembles. The trumpet group ranges from the piccolo trumpet with the highest register in the brass family, to the bass trumpet, which is pitched one octave below the standard B♭ or C Trumpet. Natural Trumpets, without devices to alter the pitch, were historically used as signaling devices in battle or hunting, with examples dating back to at least 1500 BC. Then pitch-altered trumpets with pitch altering devices such as fingerholes/keys/slides/valves, began to be used as musical instruments especially during the late 14th or early 15th century.
There are many distinct types of trumpets, with the most common being pitched in B♭ (a transposing instrument), having a tubing length of about 4 ft 10 in. Early trumpets did not have a mechanism to change the length of tubing, whereas modern instruments generally have three (or sometimes four) valves to change their pitch. There are eight combinations of three valves, making seven different tubing lengths, with the third valve sometimes used as an alternate fingering equivalent to the 1–2 combination. Most trumpets have valves of the piston type, while some have the rotary type. Resource: https://en.wikipedia.org/wiki/Trumpet
