Trumpet: History, Construction and Sound

A gold-lacquered B-flat trumpet with three piston valves, a silver mouthpiece and a wide flared bell, shown in side view on a white background. — B-flat trumpet with three piston valves. Photo: Yamaha Corporation, CC BY-SA 4.0. Image credit

The trumpet is a brass instrument with a largely cylindrical tube, a flared bell and a cup-shaped mouthpiece against which the player’s lips buzz. Metal signal trumpets date back to antiquity, and the modern valved form took shape in the early nineteenth century. Today it serves as the high voice of the brass section and as a solo instrument in classical music, jazz and popular styles.

Signal, ceremony, then song

Long before the trumpet played tunes it carried orders. Straight metal trumpets are known from ancient Egypt, where a pair was placed in the tomb of Tutankhamun in the fourteenth century BCE, and from Roman military practice. Similar signal tubes appear across Europe in the Middle Ages. Their purpose was volume, and their pitch choices were limited to whatever notes the tube and the player’s lips could produce.

By about the fifteenth century makers had learned to bend the tube into folded shapes that were easier to carry without altering its length. Nuremberg became a renowned centre of brass making, and the Haas trumpet described below comes from its workshops. Trumpeters served courts and cities, and their instruments were associated with status and ceremony, as well as warfare.

A long tube in a small parcel

A modern B♭ trumpet has roughly 1.5 metres of tubing, noticeably less than a natural trumpet, whose tube, as in an Edinburgh example by Nicholas Winkings, runs to about six feet. The tube is mostly cylindrical, then opens into a bell. It is folded twice so that the instrument fits in the hands. Three piston valves, each opening a length of extra tubing, sit in the centre. The body is usually brass, finished with lacquer or silver plating, and the detachable mouthpiece is typically a cup of brass or plated metal.

Older natural trumpets lacked any of this machinery. A Baroque natural trumpet by Johann Wilhelm Haas of Nuremberg, now in the Horniman Museum in London, consists of two long straight lengths joined by two bows, with a bell branch, a ball at the centre and a wooden block tied to brace the structure. Its bell garland is engraved with a hare, a reminder that workshops decorated as well as built.

Lips as the vibrating reed

A trumpeter does not blow a reed; the lips form the vibrating element. Pressed lightly into the mouthpiece and buzzing, they feed air into the tube in pulses, and the tube responds only to certain frequencies. Those favoured pitches form the harmonic series, the same set of notes a bugler can reach without valves. Tightening the lips and quickening the airstream moves the player from one harmonic to the next. Brass relatives such as the French Horn and the Tuba work on the same principle, differing mainly in tube length and shape.

The cylindrical bore gives the trumpet its bright, penetrating tone, which is rich in high overtones and can be heard through large ensembles. The Philharmonia Orchestra notes that, with a mute, the instrument can become soft and sweet, a reminder that the same tube can be both fanfare and whisper. Mutes of different shapes change colour as well as loudness.

How a B♭ trumpet is read

Most trumpets are pitched in B♭, so a written C sounds as the B♭ a major second below. The commonly cited written range begins at F♯3, below middle C, and climbs to about C6, although professional players often go above that. Orchestral players also use trumpets in C, which sound as written, and higher instruments in D, E♭ or piccolo B♭ and A for the very high Baroque parts.

Register changes the character: the low notes are dark and broad, the middle range is warm and forthright, and the high register becomes brilliant. Because the trumpet relies on harmonics, the notes of the upper range lie close together, so accuracy depends on precise control rather than simply on finger choices.

Valves, breath and a steady mouth

The three valves lengthen the air column. The first lowers the pitch by a whole tone, the second by a semitone and the third by a tone and a half, and combinations fill in the gaps between harmonics. Pressing no valves gives the open notes of the harmonic series. A tuning slide sets the overall pitch, and small slides on the first and third valves help correct notes that are inherently out of tune in combination.

Technique centres on breath support and the embouchure. Players build endurance through long-tone exercises, lip slurs and scales, and they carefully control articulation with the tongue. A water key lets condensation out of the tube. Practice routines vary widely between classical, jazz and commercial players, but most include daily work to keep the lips flexible and strong.

Keys, slides and the road to the valve

Makers tried several ways to fill in the missing notes. Edinburgh’s catalogue records that keys were added to the trumpet in 1796 by Anton Weidinger, and that Haydn’s famous concerto was written to show off the new keyed instrument. Keyed trumpets were used in the early nineteenth century, then gave way to valved trumpets on the continent, while slide trumpets remained in use in Britain. A slide trumpet, in which the player moves a slide to lengthen the tube, offered another route to a full scale.

The valve itself has disputed origins. Heinrich Stölzel is credited with an early piston valve around 1814, and he and Friedrich Blühmel received a joint patent in Prussia in 1818, but the dispute over who deserves credit is discussed in the Utley Collection volume. Edinburgh holds a two-valve trumpet of about 1840 by Charles Pace, with crooks for several keys, as a transitional stage. Modern variants include rotary-valve trumpets, used especially in German traditions, and the piccolo trumpet.

Fanfare to jazz solo

In the Baroque period composers placed trumpets in the highest ceremonial music, frequently paired with Timpani, and orchestras still draw on trumpets and drums for climaxes and ceremonial passages. The Horniman Museum describes Baroque composers positioning trumpet groups around performance spaces for dialogue and echo. Trumpets also carry melodies in concert bands and brass bands, and brass quintets use them as the leading voice.

Jazz brought a second tradition in which the trumpet became an improvising soloist, played with mutes, bends and a wide range of dynamics. Popular genres, from salsa to soul, soon made brass sections a recognisable sound, and modern film and television scoring often calls on the instrument for fanfares and lyrical themes. A Trombone commonly sits beside it in these sections.

Oil, grease and gentle hands

Valves depend on close-fitting pistons, so players oil them regularly and avoid dropping the instrument. Slides take a lighter grease, and the tubing is cleaned periodically with lukewarm water and a flexible brush so deposits do not build up in the tubes or the mouthpiece.

Dents in the thin brass can affect the airflow and are best corrected by a repairer. Lacquer and silver plating wear with handling and acidity from the skin, so a dry cloth after playing helps. Mouthpieces should be kept clean and stored where they will not be struck.

Small discoveries

Edinburgh’s catalogue describes a trumpet with both valves and a slide that could be set in four different keys, F, E, E♭ and D.
The Horniman’s Haas trumpet is only 740 millimetres long overall, because its tube is folded into two bows.
A natural trumpet in Edinburgh by the London maker Nicholas Winkings has a total sounding length of about six feet.
The keyed trumpet in Edinburgh, made around 1835 in Lyon by Louis Müller, has six keys and a sounding length of about two metres.
The Philharmonia Orchestra dates the valve to Stölzel in 1814, while the Utley Collection publication discusses a disputed story leading to an 1818 joint patent.

Terms used in this entry

crook: A detachable coil of tubing inserted to change an instrument’s fundamental pitch.
embouchure: The arrangement of lips, facial muscles and breath used to produce sound on a mouthpiece.
garland: The folded metal edge of a natural trumpet’s bell, often decorated.
harmonic series: The set of notes a tube can sound through overblowing, at whole-number multiples of a fundamental frequency.
mute: A device placed in or over the bell to soften or colour the sound.
natural trumpet: A valveless trumpet that can only play the notes of the harmonic series of its tube.
piston valve: A valve that slides up and down to route air through extra lengths of tubing.
rotary valve: A valve in which a rotor turns to open or close a length of extra tubing.
transposing instrument: An instrument whose written notes sound at a different pitch, as on the B♭ trumpet.