lower, making them both transposing instruments. The historical slide trumpet was probably first developed in the late 14th century for use in alta cappella wind bands. Deriving from early straight trumpets, the Renaissance slide trumpet was essentially a natural trumpet with a sliding leadpipe. This single slide was awkward, as the entire instrument moved, and the range of the slide was probably no more than a major third. Originals were probably pitched in D, to fit with shawms in D and G, probably at a typical pitch standard near A=466 Hz. No known instruments from this period survive, so the details—and even the existence—of a Renaissance slide trumpet is a matter of debate among scholars. While there is documentation (written and artistic) of its existence, there is also conjecture that its slide would have been impractical. Some slide trumpet designs saw use in England in the 18th century. The pocket trumpet is a compact B trumpet. The bell is usually smaller than a standard trumpet bell and the tubing is more tightly wound to reduce the instrument size without reducing the total tube length. Its design is not standardized, and the quality of various models varies greatly. It can have a unique warm sound and voice-like articulation. Since many pocket trumpet models suffer from poor design as well as poor manufacturing, the intonation, tone color and dynamic range of such instruments are severely hindered. Professional-standard instruments are, however, available. While they are not a substitute for the full-sized instrument, they can be useful in certain contexts. The jazz musician Don Cherry was renowned for his playing of the pocket instrument. The herald trumpet has an elongated bell extending far in front of the player, allowing a standard length of tubing from which a flag may be hung; the instrument is mostly used for ceremonial events such as parades and fanfares. David Monette designed the flumpet in 1989 for jazz musician Art Farmer. It is a hybrid of a trumpet and a flugelhorn, pitched in B and using three piston valves. Other variations include rotary-valve, or German, trumpets (which are commonly used in professional German and Austrian orchestras), alto and Baroque trumpets, and the Vienna valve trumpet (primarily used in Viennese brass ensembles and orchestras such as the Vienna Philharmonic and Mnozil Brass). The trumpet is often confused with its close relative the cornet, which has a more conical tubing shape