What Are the Parts of a Piano?
15 Aug, 2025
Starting your search for a new piano is an exciting journey that may seem overwhelming at first. Many of our customers begin their search by comparing digital vs acoustic piano options, but did you know there’s another option worth considering called a hybrid piano? In this guide, we’ll walk through the key differences of each category so that you can confidently choose the piano that’s right for your goals, space, and budget.

An acoustic piano has nearly 12,000 parts and uses the hammers, strings, and soundboard to produce sound. Acoustic pianos are available as either upright or grand pianos. Upright pianos such as the Yamaha U1 assemble the soundboard and strings vertically which allow for a smaller footprint and makes them an ideal choice when space is limited. They typically range between 42” to 52” in height and require approximately 5’ x 2’ of space. Grand pianos such as the Yamaha C3X assemble the soundboard and strings horizontally. The action features double escapement and is gravity assisted which allows for faster repetition. Grand pianos are about 5’ wide and are typically available in lengths between 5’ to 9’.
When you press a key down on an acoustic piano, a complex mechanism called the action forces a felt-covered hammer to strike one, two, or three strings. The vibration of the strings is then transferred through the bridge onto the soundboard which naturally amplifies the sound. This mechanical process gives acoustic pianos their unmatched expressiveness. The sympathetic resonance that’s created while playing can add depth while also making the sound feel rich and nuanced.
Acoustic pianos remain the standard for most players and are often recommended by teachers so that students can develop proper technique.
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The primary difference between digital and acoustic pianos comes down to how sound is produced. A digital piano creates sound electronically using recordings of other instruments and generally requires less space than acoustic pianos. The smaller footprint combined with the ability to practice with headphones makes them ideal for apartments, condos, and shared living spaces. For example, the console style Yamaha CLP-825 measures at only 53” w x 16” d, while the grand style Yamaha CVP-909GP is 56” w x 49” d offering the elegance of a grand piano in a more space-conscious design.
In lieu of strings, a digital piano holds high-quality recordings, or samples, of every note captured from a real acoustic piano. When you press a key down, a sensor captures the note and movement, which is then played back through built-in speakers or headphones.
Premium models such as the Yamaha Clavinova, deliver an authentic piano-playing experience with weighted, graded keys, adjustable touch sensitivity, and advanced sound modeling that recreates the interaction of string and soundboard resonance. Some of their higher-end models include real wooden keys, counterweights, and longer key support length for an ultra-realistic feel.
Digital pianos are designed to offer convenience and flexibility while recreating an authentic playing experience.
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A hybrid piano combines the best of both acoustic and digital pianos, blending traditional craftsmanship with modern technology. Yamaha offers four types of hybrid pianos: the AvantGrand, SILENT Piano, TransAcoustic, and Disklavier, each designed to meet the everchanging needs of today’s musicians. Yamaha hybrid pianos provide innovative solutions without having to compromise on the features or performance you value most.
The Yamaha AvantGrand combines the realistic experience of playing an acoustic piano with the convenience of digital technology. If you’re trying to decide between an acoustic vs digital piano, this series is certainly worth considering.
There are four different AvantGrand models, one of the standout features that differentiates these from a digital piano is that they are equipped with a genuine acoustic piano action. The Yamaha AvantGrand NU1XA features an upright action while the other three models feature a grand piano action. Samples are taken from world-class concert grands and some models such as the Yamaha AvantGrand N3X include a Tactile Response System that reproduces the vibrations felt on an acoustic piano, along with a multi-channel speaker system and soundboard resonator for a remarkably realistic playing experience. Those who want the flexibility of a digital piano can enjoy a variety of instrument voices, built-in recording, connectivity options, volume control and the ability to practice silently with headphones.
For those who absolutely must have an acoustic piano and are trying to decide if a hybrid piano vs acoustic piano is right for them, there are several options to consider. First up, is the Yamaha SILENT Piano, which is a real acoustic piano with a factory-installed silent system that allows you to play your piano acoustically or silently with headphones, giving you the flexibility to practice any time of day or night without disruptions.
Most of the current Yamaha and Bösendorfer upright and grand pianos are available as SILENT Pianos including the popular Yamaha U1 SH3 SILENT. Once silent mode is engaged, the silent mechanism prevents the hammers from striking the strings. A sensor captures the keystrokes being played, the digital sample is then played through your headphones, all without affecting the touch of the piano.
In addition to quiet practice, the SILENT Piano includes a wide selection of instruments to choose from, Bluetooth/AUX/MIDI connectivity options, the ability to stream audio to your piano, along with built-in and USB recording. You can also connect external speakers if you prefer to play out loud.
The Yamaha TransAcoustic piano expands the capabilities of a SILENT Piano, giving you even more flexibility. The TransAcoustic system comes factory installed and allows you to play your piano acoustically, silently with headphones, or use the soundboard to naturally amplify digital sounds and control the volume as you play out loud.
The selection of Yamaha TransAcoustic models is slightly more limited than the SILENT Piano line-up, but are still available in both upright and grand models. The TransAcoustic system works similarly to the SILENT Piano, but includes a transducer that transmits digital sounds to the soundboard giving you the ability to transform your acoustic piano to anything from a harpsichord to a 9’ concert grand. The system also includes Bluetooth/AUX/MIDI connectivity options, audio streaming, and built-in and USB recording capabilities.
The Yamaha Disklavier is the world’s most advanced reproducing player piano, combining the beauty and performance of a true acoustic piano with cutting-edge technology. The Disklavier player system comes factory installed on select Yamaha and Bösendorfer upright and grand pianos and can be enjoyed by players of all skill levels and those who simply love listening to live music.
The Disklavier player piano is truly the all-in-one entertainment system, allowing you to stream music from your favorite artists or enjoy concerts on your TV while it plays in-sync with your piano. With the ENSPIRE app, you can easily control your piano from your smart device, choose from a wide selection of digital instruments, or create custom playlists for you to enjoy at any time. ENSPIRE ST & PRO models allow you to record, save, and playback your own performances or practice silently with headphones.
Hybrid pianos combine traditional craftsmanship with the convenience of digital technology, giving you flexibility and authenticity without compromise.

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*Excludes ENSPIRE CL
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Before you commit, it helps to see a comparison of which features buyers care about most. Here, we’ll be comparing new and current models in Yamaha’s line-up.
| Feature | Digital | Acoustic | AvantGrand Hybrid | SILENT Piano Hybrid | TransAcoustic Hybrid | Disklavier Hybrid |
|---|---|---|---|---|---|---|
| Sound Source | Samples | Strings & Soundboard | Samples | Strings & Soundboard; Samples | Strings & Soundboard; Samples | Strings & Soundboard; Samples |
| Touch & Feel | Designed to mimic the feel of a real action | Real acoustic action | Real acoustic action | Real acoustic action | Real acoustic action | Real acoustic action |
| Maintenance | Does not require tuning | Tuning and maintenance as needed | Does not require tuning | Tuning and maintenance as needed | Tuning and maintenance as needed | Tuning and maintenance as needed |
| Headphone Capability | Yes | No | Yes | Yes | Yes | Yes, on select models |
| Space | Requires the least amount of space Ex. Yamaha YDP-105: 53” x 17” |
Uprights are approx. 5’ x 2’ Grands are approx. 5’ x 5’ to 9’+ |
Larger than digital smaller than acoustic depending on model. Ex. Yamaha NU1XA: 59” x 18” and N3X: 58” x 47” |
Requires same amount of space as acoustic pianos | Requires same amount of space as acoustic pianos | Requires same amount of space as acoustic pianos |
| Prices | New models start at $1,399 | New uprights MSRP start at $5,699 New grands MSRP start at $16,699 |
New models start at $7,900 | New uprights MSRP start at $10,649 New grands MSRP start at $21,649 |
New uprights MSRP start at $12,249 New grands MSRP start at $37,349 |
New uprights MSRP start at $31,449 New grands MSRP start at $26,999 |
The best piano is the one that fits your lifestyle and goals. Here are a few helpful items to consider before getting started.
If you live in an apartment or condo, have roommates, or live in a busy household and need disruption-free practice, you’ll want to look at pianos that allow you to play quietly with headphones. With Yamaha’s extensive line-up of hybrid pianos, silent practice isn’t limited to only digitals. If you’re someone who is very limited on space or you move frequently and need the ability to move a piano on your own, the smaller dimensions and lighter weight may make a digital piano more suitable for you.
Choosing the right size piano is important. Before meeting with one of our piano advisors, measure the room where your piano will be placed to ensure it fits comfortably. The piano should be large enough to produce a full and balanced sound without overwhelming the space. Our piano advisors can help with the proper placement of the piano ensuring it looks and sounds beautiful when it arrives to your home. You can also request a grand piano template and bring one home after your visit to our store.
If you’ve invested time and care into creating a home that reflects your personal style, you’ll want a piano that complements your existing décor and flows naturally within your living space. Yamaha digital, acoustic, and hybrid pianos are available in a wide selection of finishes and styles. Polished ebony remains the most popular, it’s a classic look that blends effortlessly with both traditional and contemporary interiors. We also have a beautiful selection of elegant furniture-style cabinets and wood finishes.
Next, is identifying which features matter most to you. Our piano advisors can demonstrate the capabilities of each piano and help you determine which options align with your needs and goals. If owning an acoustic piano is a must, explore the Disklavier, TransAcoustic, and SILENT Pianos to see how hybrid technology can enhance your playing experience. For those looking to get the most out of their piano, the Yamaha Disklavier offers features that your entire household can enjoy, even if you don’t know how to play. If you’re looking to explore new creative possibilities, digital and hybrid pianos are equipped with features like digital voices, rhythms, accompaniment, and recording to inspire new ways for you to compose, create, and perform.
Whether you’re drawn towards the timeless craftsmanship of an acoustic, the flexibility of a digital, or are looking for a hybrid piano that can provide the best of both worlds, the step that matters most is playing them in person. Every pianist has unique preferences when it comes to sound, touch, and style. Experiencing these pianos firsthand is the best way to discover the piano that’s right for you.
At Greene Music, San Diego’s trusted piano dealer since 1974, our factory-trained staff will help you compare acoustic, digital, and hybrid pianos side by side. We also offer video consultations and in-home visits to ensure your new piano fits your space and style. Contact us today or visit our showroom to begin your search for the perfect piano.