A bicycle wheel with guitar strings, a touch-operated synth, and the “Demon Box” were just a few of the new instruments on show at Georgia Tech’s Guthman Musical Instrument Competition this weekend.
What's 300 years old, made of wood and easily outperforms most mutual funds? A Stradivarius violin. Or an antique guitar or mandolin, for that matter. A growing group of investors is viewing music—as ...