The "Steinway scale" refers to a specific system of measuring the quality and performance of pianos, particularly those made by Steinway & Sons. This scale evaluates various aspects of a piano, including its tonal quality, touch, and overall craftsmanship. It helps musicians and buyers understand the characteristics of different pianos. This scale is often used in conjunction with other rating systems to provide a comprehensive assessment of a piano's capabilities. By using the Steinway scale, players can make informed decisions when selecting a piano that best suits their needs and preferences.