Genre with Musucal Instrument. A musical instrument is an instrument created or adapted to make musical sounds. In principle, any object that produces sound can be considered a musical instrument, it is through purpose that the object becomes a musical instrument. The history of musical instruments dates to the beginnings of human culture. Early musical instruments may have been used for ritual, such as a trumpet to signal success on the hunt, or a drum in a religious ceremony. Cultures eventually developed composition and performance of melodies for entertainment. Musical instruments evolved in step with changing applications. The date and origin of the first device considered a musical instrument is disputed. The oldest object that some scholars refer to as a musical instrument, a simple flute, dates back as far as 67,000 years. Some consensus dates early flutes to about 37,000 years ago. However, most historians believe that determining a specific time of musical instrument invention is impossible due to the subjectivity of the definition and the relative instability of materials used to make them. Many early musical instruments were made from animal skins, bone, wood of specified trees, and other non-durable materials. Musical instruments developed independently in many populated regions of the world. However, contact among civilizations caused rapid spread and adaptation of most instruments in places far from their origin. By the Middle Ages, instruments from Mesopotamia were in maritime Southeast Asia, and Europeans played instruments originating from North Africa. Development in the Americas occurred at a slower pace, but cultures of North, Central, and South America shared musical instruments. By 1400, musical instrument development slowed in many areas and was dominated by the Occident. Musical instrument classification is a discipline in its own right, and many systems of classification have been used over the years. Instruments can be classified by their effective range, their material composition, their size, etc. However, the most common academic method, Hornbostel-Sachs, uses the means by which they produce sound. The academic study of musical instruments is called organology. A musical instrument makes sounds. Once humans moved from making sounds with their bodies, for example, by clapping, to using objects to create music from sounds, musical instruments were born. Primitive instruments were probably designed to emulate natural sounds, and their purpose was ritual rather than entertainment. The concept of melody and the artistic pursuit of musical composition were unknown to early players of musical instruments. A player sounding a flute to signal the start of a hunt does so without thought of the modern notion of making music. Musical instruments are constructed in a broad array of styles and shapes, using many different materials. Early musical instruments were made from found objects such as shells and plant parts. As instruments evolved, so did the selection and quality of materials. Virtually every material in nature has been used by at least one culture to make musical instruments. One plays a musical instrument by interacting with it in some way, for example, by plucking the strings on a string instrument. Researchers have discovered archaeological evidence of musical instruments in many parts of the world. Some finds are 67,000 years old, however their status as musical instruments is often in dispute. Consensus solidifying about artifacts dated back to around 37,000 years old and later. Only artifacts made from durable materials or using durable methods tend to survive. As such, the specimens found cannot be irrefutably placed as the earliest musical instruments. In July 1995, Slovenian archaeologist Ivan Turk discovered a bone carving in the northwest region of Slovenia. The carving, named the Divje Babe Flute, features four holes that Canadian musicologist Bob Fink determined could have been used to play four notes of a diatonic scale. Researchers estimate the flute's age at between 43,400 and 67,000 years old, making it the oldest known musical instrument and the only musical instrument associated with the Neanderthal culture. However, some archaeologists and ethnomusicologists dispute the flute's status as a musical instrument. German archaeologists have found mammoth bone and swan bone flutes dating back to 30,000 to 37,000 years old in the Swabian Alps. The flutes were made in the Upper Paleolithic age, and are more commonly accepted as being the oldest known musical instruments. Archaeological evidence of musical instruments was discovered in excavations at the Royal Cemetery in the Sumerian city of Ur.