Listen to Five of the Worldâs Newest, Wildest Instruments A Lego guitar and a âwar tubaâ are among the highlights of this yearâs Guthman Musical Instrument Competition. The segulharpa, an electromagnetic harp, is one of the entrants in this year’s Guthman Musical Instrument Competition, organized by the Georgia Institute of Technology.Credit...Elísabet Davíðsdóttir, via Georgia Tech School of Music By Corinna da Fonseca-Wollheim Listen to This Article What possesses someone to invent a new instrument? Ask the finalists of this yearâs Guthman Musical Instrument Competition, and you get different answers â among them boredom, curiosity, frustration.