"Elements of Music Review Crossword": HTML5 Crossword

Across

2. Duration or how long or short a note is (6)
4. Tone quality, or color of sound (6)
6. Melody with chordal accompaniment (10)
8. Different melodies happening at the same time, working together (10)
9. To gradually get softer (11)
11. Harmony that creates a clashing sound (9)
13. Harmony that creates a pleasing sound (9)
15. Layers of sound in a piece of music and how they interact (7)
16. How high or low a note is (5)
17. The feeling a piece of music is intended to create (4)
18. How a song is organized into sections (4)

Down

1. A constant, steady pulse of a piece of music (4)
3. Two or more pitches being played at the same time (7)
5. One melodic line with no accompaniment (10)
7. To gradually get louder (9)
9. Melody moving by skip or leap (8)
10. Melody moving by step (8)
12. Loudness and softness of music (8)
14. A tune, or a sequence of pitches played one at a time (6)
15. How fast or slow a song is played (5)