Casio announced a new addition to its Casiotone line of portable electronic keyboards with a feature that could help aspiring musicians master skills like rhythm and timing without the frustrations or discouragement of hitting the wrong note. The Casiotone CT-FS1 is available now for $399.9 9 in a monochromatic black or white version where even the 61 touch-responsive keys are all the same color. It can run on AA batteries or a power adapter but at just under 10 pounds in weight it's definitely not the smallest of portable keyboards. There's built-in stereo speakers and Bluetooth connectivity if you're playing for others, as well as a physic … Read the full story at The Verge. ...read more read less