Musical notes

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Across
  1. 4. number of Quaver notes in a semibreve
  2. 6. British name of the note with a white head and a stem
  3. 7. is expressed by a note’s placement on the staff
  4. 9. element of note for augmentation half of its value
  5. 10. British name of a black note with two tails
  6. 12. British name 1/4 the length of a whole note.
Down
  1. 1. another term for ‘tail’
  2. 2. is a symbol written on the staff that express the pitch and duration of a sound
  3. 3. British name of the note that takes all four beats.
  4. 5. American name for Semiquaver (U.K.)
  5. 8. depends on the note’s length , which is specified by its color, stem, or flag(s)
  6. 11. the place where notes are written
  7. 13. in Russian 'си'