error there seems to be something wrong with this

123456789101112
Across
  1. 1. how high or low a note is
  2. 4. italian for "the end"
  3. 5. the basic measurement of time and pulse of the music
  4. 6. the tune of a song
  5. 9. value_ the length of anote in terms of beats
  6. 10. the words of a song
  7. 12. groupings of beat according to the time
Down
  1. 2. a compositional technique
  2. 3. notes played at the same time that sound good together
  3. 7. string_ strings played without holding them down on any fret
  4. 8. a group of notes played at the same time to create harmony
  5. 11. symbols- the letter above the staff to indercate the chord to play