
This Performance Edition Boston Baby Grand piano saves space while offering big sound.
The Boston GP156 baby grand piano is a remarkable fusion of world-class design and accessible elegance, offering the refined performance of a much larger instrument in a compact, stylish package. Designed by Steinway & Sons, The Boston baby grand piano brings Steinway’s legendary craftsmanship and engineering to a wider audience, with features rarely found in pianos of its size or price.
From its wide-tail design that allows for a richer, more powerful tone, to its responsive action and premium materials, this 5’1″ baby grand delivers an inspiring playing experience for both seasoned musicians and passionate beginners. Whether in a studio, living room, or teaching space, this Boston proves that smaller can still be exceptional.
Octagrip Pinblock

Steinway & Sons revolutionized piano construction in 1963 with the introduction of their patented Hexagrip® pinblock—the first of its kind designed specifically to enhance tuning stability. This innovation was adapted for the Boston Performance Edition series in 2009 as the Octagrip™ pinblock, a more cost-effective interpretation of the original Steinway design.
Engineered with precision, the Octagrip pinblock offers superior torque retention, minimizes the risk of tuning pin slippage, and helps the piano stay in tune longer—delivering professional-level performance and reliability at a more accessible price point.
Tapered, Wide-tail Soundboard

Inspired by Steinway & Sons’ groundbreaking 1936 patent for the Diaphragmatic® soundboard, Boston pianos feature a tapered soundboard that’s thicker in the center and thinner at the edges—an ingenious design that allows for greater flexibility and enhanced resonance. By widening the tail of the piano, Boston is able to fit a larger soundboard—comparable to that of a longer grand—into a more compact and affordable case. The result is a full, rich tone that rivals much larger pianos from other brands, delivering exceptional sound without requiring extra space or cost.
More Steinway & Sons Features

All Boston Performance Edition pianos also feature the same piano wire found in the legendary Steinway & Sons pianos and solid-brass hardware.
Often the choice for beginning and advanced players alike, Boston pianos are also a staple of the finest music institutions in the world. You will also find the Steinway & Sons designed beauties in houses of worship, where performance and durability are equally important.
Knowing that Boston pianos can stand up to the rigors of institutional use means you can depend on them to give your family years of dependable service.
Although it compares in construction quality to the Yamaha CX-2 Grand Piano, Shigeru Kawai SK-2, Mason & Hamlin Model A, the Boston Baby Grand features a lower tension scale design, responsive all-hardwood action, and a full and rich tone in asmaller footprint and at a fraction of the price.

Available Finishes:
High Polished or Satin Ebony