My ex drummer from back then, who plays better than very, very good, was impressed with this.
This girl is on Youtube in a couple of videos, looks like she's explaining how she does it or whatever, but it's all in Chinese and not subtitled.
Would be very interesting to hear what she's saying.
In the guitar solo in this tune, Jimmy Page used a violin bow.
Page used a Fender Telecaster on the 1st album, a Gibson Les Paul on the 2nd.