The Yamaha S4 is a high-end, handcrafted grand piano, meticulously built with differentiated materials, surpassing Yamaha's C series. It offers a refined playing experience for discerning pianists and performance settings. The S4 model delivers exceptional tonal clarity and a rich, resonant sound. Its refined mechanics enable precise control and a wide dynamic range, resulting in a highly sensitive and expressive instrument. This specific model features an auto-piano system providing exceptional utility.