It looks a little bit like a body board, and it does ride the waves — sound waves, that is. Meet the harpejji, a fretted string instrument invented and built in the Baltimore area. Coldplay bought one ...

As a keyboard player who’d love to also be able to play the guitar, but can’t, this new instrument appeals to me. The Harpejji takes the best characteristics of a guitar, and the same of a keyboard ...