Teenage Engineering’s unique music machines are 30 percent off

Teenage Engineering’s OP-XY has a huge number of functions. | Photo by Terrence O’Brien / The Verge With elements from synthesizers, loopers, and effects pedals, Teenage Engineering’s devices lie somewhere between musical instrument and modern art. These grooveboxes, as they’re often called, are capable of helping you produce songs in real time from a single unit, with an eye-catching design language. A wide swath of the brand’s offerings are 30 percent off at Guitar Center when you use code…