The Williams Allegro IV includes a truly magnificent concert grand piano designed to amaze and inspire classical and jazz pianists, as well as demanding rock, blues, country and pop players. However, the Allegro IV speaks with much more than one voice. There are 11 more sounds to explore, including two vintage electric pianos, two organs, strings, acoustic and electric bass, vibraphone and choir. The Allegro IV has an 88-key, hammer-weighted keyboard that provides the authentic feel of an actual acoustic grand, making it easy for players to transition from home practice and songwriting sessions to performing live and in the studio on a real piano. The realism continues with graded keys that provide a heavier response at the bottom of the keyboard—just like a real acoustic grand piano. An enhanced, upgraded speaker system ensures you hear every nuance of the sounds and music you’re playing, and Bluetooth audio and MIDI connectivity expands your creative options. In addition, the free Williams Piano app for iOS lets players further personalize their experience with play-along features, customization of the Allegro IV instrument sounds and effects, and more.