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It's an i pod. People can listen to music everywhere. They use earphones. https://www.youtube.com/watch?v=qLsn5ZMhgu4

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Later people invented a smaller plastic disc. It was a CD. You can play the CD in a CD player.
https://www.youtube.com/watch?v=JS1QK2Wavig

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It was smaller. It was plastic and wood. The discs were plastic too and they were big

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With the use of microphones big bands were recorded. There were lots of drums trumpets and singers.

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Gramophone played round flat discs. There were songs on the discs.https://www.youtube.com/watch?v=8vZYlBRSEPo

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Thomas Edison invented  it in 1877. He recorded music onto the cylinder. The cylinder was wood and metal.It turned round and played the music.
https://www.youtube.com/watch?v=FdZiUYDDZWU