The Yamaha Upright Piano Model X, also known as the Yamaha U3X, is a highly regarded upright piano in the Yamaha U series. It was introduced in the 1980s and is 52 tall. The U3X is known for its exceptional craftsmanship, excellent sound quality, and responsive touch. It is a popular choice among professional pianists, music schools, and piano enthusiasts. With its traditional upright design and durable construction, the U3X offers a balance of affordability and high-quality performance. This particular model was just regulated, tuned and polished.