This is the Earth Harp, the world’s largest stringed instrument. Invented in 1999 by artist William Close, it runs 1,000 ft. strings (about the length of 3 football fields) across a natural environment and then “plays” that environment.The strings are rubbed with violin bows and cotton gloves. The instrument itself is tuned to an A Minor scale.  
The Earth Harp has been used to “play” the Seattle Space Needle, the Colosseum of Rome and The Grand Theater of Shanghai. 
/Salon97 - Kevin

This is the Earth Harp, the world’s largest stringed instrument. Invented in 1999 by artist William Close, it runs 1,000 ft. strings (about the length of 3 football fields) across a natural environment and then “plays” that environment.The strings are rubbed with violin bows and cotton gloves. The instrument itself is tuned to an A Minor scale.  

The Earth Harp has been used to “play” the Seattle Space Needle, the Colosseum of Rome and The Grand Theater of Shanghai

/Salon97 - Kevin