Live Control - The two LIVE CONTROL knobs let you intuitively control your performance in real-time.The chords play back in a loop, so you no longer need to repeat the chord pattern manually. Chord Looper - The Chord Looper lets you record a chord sequence and play it back, freeing your left hand and providing new ways to enhance your performance.Touching a shortcut icon calls up the display of the corresponding function. The bottom line of the main display contains the shortcut icons which let you call up various functions with a single touch. The midrange models now have a third right-hand voice. This new display also highlights several of the new features. This interface matches the interface on the Genos. Touch-screen display - The 7" touch display and new graphic user interface (GUI) provide intuitive control over the instrument's powerful features. Here are some of the new features in these keyboards: These new models incorporate many features from the new flagship Genos keyboard that are not available in the current PSR-Sxxx series and thus mark the next generation of Yamaha keyboards. The new Yamaha mid-range arranger keyboards, the PSR-SX900 and PSR-SX700, will replace the current PSR-S975 and S775 models.