Musical Puzzle

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Across
  1. 4. A group of people singing
  2. 6. Javanese musical instrument.
  3. 10. One thing that performers need from their audience.
  4. 11. The song that became the soundtrack of the 2010 World Cup
Down
  1. 1. A type of instrument that has a membrane and is played by hitting it.
  2. 2. One of the elements of the song that contains a message
  3. 3. Heavy, deep and enveloping frequencies are referred to as..
  4. 5. The unit of time in music is referred to as
  5. 7. Singer of "Rolling in the deep
  6. 8. Pelangi-pelangi alangkah...
  7. 9. Someone who modifies an existing song