It took nearly an entire year, but Roland's voice-savvy GO:PIANO keyboard is now available. Spend $500 (and enable a Roland skill) and you can use Alexa to choose sounds, turn on the metronome and control numerous other settings while you play -- you don't have to lift your fingers off the keys or wade through indecipherable menus. This also turns your keyboard into a full-fledged Alexa speaker, making it one of the few Amazon-powered devices that you can use to perform alongside the music you're listening to.