Why is the term Roger Wilco considered by some to be an incorrect phrase - trivia question /questions answer / answers
Aerophones; any class of musical instruments in which a vibrating mass of air produces the initial sound including bull roarers and sirens. They are found in many countries throughout Africa and are normally incorporated with dancing, the musicians having to synchronize their footwork along with playing their notes!
Membranophones, where â¦ the sound is generated by a vibrating skin eg. a drum.   Aerophones, where an oscillating air column is used to produce a tone eg. a flute or organ.   Idiophones, where the actual body of the instrument provides the tone eg. a xylophone or castanets.