The modern timpani evolved in the 18th and 19th centuries from the simple 12th-century membranophone of the Naker to a complex instrument, consisting of a suspended kettle with a foot-operated clutch, capable of rapid tuning. The technological evolution of the instrument led to increased interest in its capabilities and sound among such composers as Joseph Haydn, Wolfgang Amadeus Mozart, Ludwig van Beethoven, Robert Schumann, and Hector Berlioz.

Initially used only outdoors, the instrument underwent modifications in the 16th and 17th centuries that led to its incorporation into chamber ensembles. During the 18th and 19th centuries, modifications in its design and construction, and rising interest in the symphony orchestra led to changes not only to the ensemble's size, but also to composers' use of specific instruments within the orchestra.

These new and challenging compositional demands influenced the design of the timpani, how timpanists play the instrument, and also helped to raise the standard of playing to a whole new level. The combination of composers' and players' interest in the timpani during the 18th and 19th centuries helped to make the instrument what it is today.

Pre-18th-century timpani construction and use

13th–15th-century timpani use and development

The timpani is considerably older than other melodic percussion instruments, such as the marimba and xylophone. Music historians trace the instrument's history to ancient times when the drums were used in religious ceremonies. During the 13th century, timpani began to be used in pairs and were called Nakers, or Nakirs. These drums were small, usually between , and were used primarily by the military.Edmund A. Bowles. "The Double, Double, Double Beat of the Thundering Drum: The Timpani in Early Music." Early Music. 19, no. 3 : August 1991, pp. 419–435 The construction of these drums was composed of a shell made of either metal or wood and a head, which was connected directly to the shell of the drum and did not allow for the drums pitch to be altered at all. The drums themselves were tuned to fixed pitches and were usually tuned to an interval of a fourth or a fifth.G. Finger. "The history of the timpani." Percussionist. 11, no. 3: Spring, 1974: pp. 101–111 These drums were used until the 15th century, when cavalry such as the Mongols, Muslims and Ottoman Turks would mount timpani-like drums on horseback. These drums were much larger than those previously used and were very similar to the drums that would be later used in the orchestra.James Blades. Percussion Instruments and Their History. London @ Boston: Faber and Faber, 1984, pp. 226–230

The instrument itself was made of a large metal or copper bowl and had an animal skin, usually goat, pulled tight across the bowl. Europeans added a system of screw-tension to allow for more precise tuning of the heads. Combined with the development of the so-called Counter hoop, the system created greater resonance and more precise pitch. A "Counter Hoop" is a hoop that is placed over the head of the drum and uses some type of screw or rod mechanism to connect the hoop to the bowl. This allowed for the head itself to not be directly attached to the bowl and thus provides a way for the head to vibrate more freely as well as be fine-tuned more easily.

Early European use of timpani

The horse-mounted timpani of the Ottoman Empire was sure to be one of the sources of inspiration for the European adoption of timpani into their cavalry. Having timpani in the cavalry was rare and the drums were only awarded to the most elite of groups. The drums were paired with trumpeters and announced the arrival of the armies.Henry W. Taylor. The Timpani. London: John Baker Publishers Ltd., 1964, pp. 22–24 Both the trumpeters and the timpanists were highly regarded and were often placed close to a commander when in battle. This relationship between the trumpet and timpani continued for many centuries. As empires in Europe gave way to royal courts, the timpani and trumpet pairing continued to be used, but they were now used as more of an image-builder for the nobility. It was common for emperors, dukes, lords and others of high rank to travel with a timpanist and trumpeter to emphasize the importance of their social rank.Finger, pp. 109–111 Those who possessed timpani were an exclusive group. This meant that timpanists themselves were only allowed to be employed by nobility and were not to interact with other instrumentalists, who were considered to be household employees of an inferior rank. As a result, guilds were formed by timpanists and trumpeters and members were treated as an elite group.Edmund A. Bowles. The Timpani: A History in Pictures and Documents. Hillsdale, NY: Pendragon Press, 2002, pp. 16–17

Timpani move indoors

Although the timpani was still considered primarily an outdoor instrument, it started being used during indoor concerts to provide rhythmic support for trumpet fanfares. Most of the time, players would not have written music to follow because parts were handed down from generation to generation and were learned by rote. By the 17th century, the timpani moved indoors for good and composers began to demand more from timpanists than ever before. The timpani was first introduced to the court orchestras and opera ensembles as well as in larger church works.P.A. Browne. "The Orchestral Treatment of the Timpani." Music & Letters. October 1923, pp. 335–336 Due to this move indoors, a much more formalized way of playing and approaching the timpani was developed. The old practice of learning parts by rote gave way to written music and composers began writing more regularly for the timpani. More notes were written than just two simultaneous pitches and as a result, timpanists were faced with the issue of how to play their parts on the equipment they had.P.A. Browne, pp. 338–339 One solution was for timpanists to add more drums to their set-up, but this also created a problem: During this time, performances often took place in courts or at smaller theaters that had limited stage space and large timpani set-ups did not fit very well. Timpanists at this time were faced with a problem; using a large, cumbersome set of timpani to play their parts would not be possible due to space restraints. However, a solution was found, and with the help of technological advancements during the 18th century in Europe, devices were developed and added to the drums to change the pitch. These changes allowed for a single drum to play more than just two notes. This provided a way for timpanists to not only play their parts more easily but also use fewer drums.

Technological developments in the timpani

First advancement in rapid tuning

Around this time, Europe was beginning to enter an era of Industrial Revolution, and new technological breakthroughs helped provide timpanists with possible ways to alter the pitch on one of their drums. The first major advancement is believed to have been made by Gerhard Cramer in 1812. The new orchestral works required faster tuning of the timpani. He worked with a court locksmith and the royal armorer to make his first set of drums.Edmund A. Bowles. "Nineteenth-Century innovations in the Use and Construction of the Timpani" Percussionist. Vol 19 n2, Official Publication of The Percussive Arts Society. 1982 pp. 38–41 Although no diagrams or drawings of what the drums looked like exist, there are several rough descriptions of how the drums worked. The kettle of the drum was attached to a wooden base. Rods curved down along the kettle and connected the counter hoop to a threaded hole at the bottom of the bowl. There was a bolt inside of the threaded hole that allowed for the entire mechanism to be raised and lowered. In order for the bolt to be turned and the drum to move, there were several levers that led to a larger vertical lever that came out of the wooden base and when moved would either raise or lower the bowl, thus changing the pitch.

Rotating timpani The next breakthrough in rapid tuning came around 1815 when Johann Stumpff, a musician and inventor from Amsterdam invented a way for a drum's pitch to be changed by physically rotating the instrument. Similar to Cramer's design, rods attached the counter hoop to a metal ring below the bowl. Unlike Cramer's design, Stumpff added a second metal ring that was attached to the legs supporting the kettle.Edmund A. Bowles. "Innovations", pp. 41–44 The bottom ring was threaded and a long bolt extended from the base of the drum up through the threaded ring and attached to the second ring. As the bowl and counter hoop rotated, the counter hoop would move up and down but the bowl would remain stationary. This allowed for different levels of tension to be placed on the counter hoop and, as a result, produced different pitches. This invention was popular because it was cheap to manufacture, worked well, and was easy to transport, which made these drums ideal for traveling orchestras.Bowles, "Timpani, pp. 42–43 However, the fact that players had to put down the mallets before rotating the drums was a major drawback.

First suspended kettle In 1836, Johann Kasper Einbigler designed a drum that not only was easier to tune than previous models, but also provided a far superior tone quality.James Blades. Percussion Instruments and Their History. London & Boston: Faber and Faber, 1984, p. 277 He was able to improve the tone quality by suspending the kettle with struts that were attached to the top of the kettle. This differed from previous models on which the rods were attached the side of the kettle. The struts on Einbigler's drum were directly connected to the support system under the drum and this allowed for the kettle to resonate more freely.Robert Bridge. "Timpani Construction paper." Retrieved 12 February 2010

The tuning mechanism of these drums combined aspects of both Cramer and Stumpff's designs. There were rods that attached the counter hoop to a ring, or what is known today as a spider, which was located under the kettle. The spider was connected to an arm under the base which was raised and lowered by a vertical tuning crank to change the pitch of the drums. There were many reasons why these drums were so successful. Besides the already mentioned more freely resonating kettle, this system of tuning was much quieter than the previous designs, allowing timpanists to change the drum's pitch during quiet parts of the music.

First foot-activated tuning system In 1840, August Knocke, a gunsmith who lived in Munich designed the first set of drums where the tuning was done using the player's foot rather than hands.Blades, Percussion History, p. 278 He used a similar two-ring design where one ring remained stationary and the other moved up and down to alter the pitch. Gears were attached to the rings and another separate ring was connected that would be turned by the player's foot to alter the pitch. This foot-activated tuning ring replaced the vertical lever which was previously used to change the pitch. These drums also utilized the suspended kettle to provide the best tone quality possible. These drums were commonly used in German orchestras at the time and one of the most notable groups to use these drums was the court theater in Munich. These drums received numerous accolades during the mid-19th century. They received honorable mention at The Great Exhibition (1851) in London as well as receiving a medal of honor at the 1854 German Industrial Exhibition in Munich at the Glaspalast.Bridge. "Timpani Construction." Retrieved 12 February 2010

Pfundt/Hoffmann drums