Intoduction

A musical instrument is constructed or used for the purpose of making the sounds of music. In principle, anything that produces sound can serve as a musical instrument. The history of musical instruments dates back to the beginnings of human culture. The academic study of musical instruments is called organology.
The date and origin of the first device of disputed status as a musical instrument dates back as far as 67,000 years old; artifacts commonly accepted to be early flutes date back as far as about 37,000 years old. However, most historians believe determining a specific time of musical instrument invention to be impossible due to the subjectivity of the definition.
Musical instruments developed independently in many populated regions of the world. However, contact among civilizations resulted in the rapid spread and adaptation of most instruments in places far from their origin.By the middle Ages,instruments from Mesopotiamia could be found in the Malay Archipelageo and Europeans were playing instrument from North Africa.Development in the America occured at a slower pace,but culture of North,Central, and South America shared musical instrument.

History: Scholars agree that there are no completely reliable methods of determining the exact chronology of musical instruments across cultures. Comparing and organizing instruments based on their complexity is misleading, since advancements in musical instruments have sometimes reduced complexity. For example, construction of early slit drums involved felling and hollowing out large trees; later slit drums were made by opening bamboo stalks, a much simpler task.It is likewise misleading to arrange the development of musical instruments by workmanship since all cultures advance at different levels and have access to different materials. For example, anthropologists attempting to compare musical instruments made by two cultures that existed at the same time but who differed in organization, culture, and handicraft cannot determine which instruments are more "primitive".Ordering instruments by geography is also partially unreliable, as one cannot determine when and how cultures contacted one another and shared knowledge.
German musicologist Curt Sachs, one of the most prominent musicologists and musical ethnologistsin modern times, proposed that a geographical chronology until approximately 1400 is preferable, however, due to its limited subjectivity.Beyond 1400, one can follow the overall development of musical instruments by time period.
The science of marking the order of musical instrument development relies on archaeological artifacts, artistic depictions, and literary references.Since data in one research path can be inconclusive,all three paths provide a better historical picture.
Middle Age:

During the period of time loosely referred to as the Middle Ages, China developed a tradition of integrating musical influence obtained by either conquering foreign countries or by being conquered. The first record of this type of influence is in 384 AD, when China established an East Turkestanic orchestra in its imperial court after a conquest in Turkestan. Influences from India, Mongolia, and other countries followed. In fact, Chinese tradition attributes most musical instruments of the time to those countries.Cymbals and gongs gained popularity, along with more advanced trumpets, clarinets, oboes, flutes, drums, and lutes. Some of the first bowed zithers appeared in China in the 9th or 10th century, influenced by Mongolian culture.
India experienced similar development to China in the Middle Ages; however, stringed instruments developed differently to accommodate different styles of music. While stringed instruments of China were designed to produce precise tones capable of matching the tones of chimes, stringed instruments of India were considerably more flexible. This flexibility suited the slides and tremolos of Hindu music. Rhythm was of paramount importance in Indian music of the time, as evidenced by the frequent depiction of drums in reliefs dating to the Middle Ages. The emphasis on rhythm is an aspect native to Indian music. Historians divide the development of musical instruments in Middle Age India between pre-Islamic and Islamic periods due to the different influence each period provided. In pre-Islamic times, idiophones such hand bells, cymbals, and peculiar instruments resembling gongs came into wide use in Hindu music. The gong-like instrument was a bronze disk that was struck with a hammer instead of a mallet. Tubular drums, stick zithers named veena, short fiddles, double and triple flutes, coiled trumpets, and curved India horns emerged in this time period. Islamic influences brought new types of drums, perfectly circular or octagonal as opposed to the irregular pre-Islamic drums. Persian influence brought oboes and sitars, although Persian sitars had three strings and Indian version had from four to seven.

Modern:

Musical instrument development was dominated by the Western Occident from 1400 on—indeed, the most profound changes occurred during the Renaissance period. Instruments took on other purposes than accompanying singing or dance, and performers used them as solo instruments. Keyboards and lutes developed as polyphonic instruments, and composers arranged increasingly complex pieces using more advanced tablature. Composers also began designing pieces of music for specific instruments.In the latter half of the sixteenth century, orchestration came into common practice as a method of writing music for a variety of instruments. Composers now specified orchestration where individual performers once applied their own discretion. The polyphonic style dominated popular music, and the instrument makers responded accordingly.
Beginning in about 1400, the rate of development of musical instruments increased in earnest as compositions demanded more dynamic sounds. People also began writing books about creating, playing, and cataloging musical instruments; the first such book was Sebastian Virdung's 1511 treatise Musica getuscht und angezogen (English: Music Germanized and Abstracted). Virdung's work is noted as being particularly thorough for including descriptions of "irregular" instruments such as hunters' horns and cow bells, though Virdung is critical of the same. Other books followed, including Arnolt Schlick's Spiegel der Orgelmacher und Organisten (English: Mirror of Organ Makers and Organ Players) the same year, a treatise on organ building and organ playing. Of the instructional books and references published in the Renaissance era, one is noted for its detailed description and depiction of all wind and stringed instruments, including their relative sizes. This book, the Syntagma musicum by Michael Praetorius, is now considered an authoritative reference of sixteenth century musical instruments.
In the sixteenth century, musical instrument builders gave most instruments, such as the violin, the "classical shapes" they retain today. An emphasis on aesthetic beauty also developed—listeners were as pleased with the physical appearance of an instrument as they were with its sound. Therefore, builders paid special attention to materials and workmanship, and instruments became collectibles in homes and museums. It was during this period that makers began constructing instruments of the same type in various sizes to meet the demand of consorts, or ensembles playing works written for these groups of instruments. Instrument builders developed other features that endure today. For example, while organs with multiple keyboards and pedals already existed, the first organs with solo stops emerged in the early fifteenth century. These stops were meant to produce a mixture of timbres, a development needed for the complexity of music of the time. Trumpets evolved into their modern form to improve portability, and players used mutes to properly blend into chamber music.