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really don't know because you have only link and I have network problem
Answer:
1. Railroad Spike (1896)
2. Sock Ticker (1900)
3. Iridescent Lamp (1891)
4. Cross (1875-99)
5. Silver Presentation Cup (1900)
6. Sewing Machine (1889)
7. John Brown Lennon's Badge (1893)
8. Jeans (1873-96)
9. Mans gown (1896)
10. Print (1880's)
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Answer:
Harmony is two or more notes played together at the same time. ... In music, harmony is the use of simultaneous pitches (tones, notes), or chords. The study of harmony involves chords and their construction and chord progressions and the principles of connection that govern them.
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