Singing techniques

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Across
  1. 5. when men (or occasionally woemn) make their voices go really high
  2. 6. when singers decorate and add bits to the tune
  3. 7. improvising using syllables like 'doo' and 'dat'. Comes from Jazz music
  4. 8. when a singer slides from one note to another
  5. 9. when rhyming lyrics are spoken or chanted to a rhythmic beat
Down
  1. 1. singing with no instrumental backing
  2. 2. when singers quiver up and down slightly in pitch
  3. 3. using the voice to make percussive sounds
  4. 4. when a singer sings notes from their higher register at a louder volume than normal