Roland A Roland has announced a couple of new controller keyboards: While these are part of the same range, each model is designed to appeal to a very different kind of user. The 4-octave A is lightweight and portable, but also designed to be rugged enough to gig with. The full-size A, meanwhile, has the hammer-action keys that will attract piano-playing computer musicians. Both models sport a D-Beam controller, user-assignable knobs and switches, and Octave and Transpose buttons. Owners of[…]