What is Western/Tack Piano?
Tack piano. It is used to evoke the feeling of a honky-tonk piano (a piano in which one or more strings of each key are slightly detuned). Tack pianos are commonly associated with ragtime pieces, often appearing in Hollywood Western saloon scenes featuring old upright pianos.

Types of Pianos
There are three primary types of pianos: Grand, Upright, and Electronic. These types are often resized and combined to incarnate other styles, such as the "Electric Baby Grand Piano", "Electric Upright Pianos", and "Baby Grand Piano".