Answer: A Organ i think...
Explanation: it makes since an organ has metal pipes, keys, and uses air.
Neumatic notation was later used in medieval music to indicate certain patterns of rhythm called rhythmic modes, and eventually evolved into modern musical notation. Neumatic notation remains standard in modern editions of plainchant. The earliest Western notation for chant appears in the ninth century.
The answer is false. Ethnomusicology generally has no canon of artists and pieces, at least in the same way that Western music does. Majority of what can be classified under ethnomusicology is music passed on in a community, and most pieces have anonymous authors.