Circular Harp Created by David Murphy, the giant circular harp is an acoustic instrument, which looks a bit like a very large kettledrum. It contains 66 strings, strung in a complex pattern across the top.
The tar is a traditional Persian instrument that uses mulberry wood and stretch lambskin and camel leg bone. It has a range to of 2 to 1 1/2 octaves and has 25 to 28 adjustable gut frets. The pairs singing strings are tuned in fourths of C G C and then the one flying bass string which is tuned in G, an octave lower than the singing middle string.