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Grand pianos have the frame and strings placed horizontally, with the strings extending away from the keyboard
- This makes the first-class piano a large instrument, for which the ideal setting is a spacious allowance with gigantic ceilings for proper resonance
- There are different sizes of eminent piano
- Manufacturers Beginner Piano Lessons and models vary, but a rough generalization distinguishes the "concert grand" (between about 2.2 m to 3 m long) from the "parlor grand" (about 1.7 m to 2.2 m) and the smaller "baby grand" (which may be shorter than it is wide).
Upright pianos, also called vertical pianos, are more compact because the frame and strings are vertical, extending in both directions from the keyboard and hammers. It is considered harder to produce a sensitive piano functioning when the hammers measure horizontally, as the vertical hammer return is dependent on springs which are prone to wear and tear.