Educational objective(s) | Creative Thinking |
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Model Number | 6307425 |
Number of pieces | 3662 |
Assembly Required | No |
Batteries Required? | Yes |
Batteries Included? | Yes |
Material type(s) | Plastic |
Material care instructions | Wipe with damp cloth |
Colour | Multicolor |
Release date | Nov. 1 2020 |
Manufacturer recommended age | 18 years and up |
Item model number | 6307425 |
Product Dimensions | 58.2 x 37.8 x 16 cm; 6.74 kg |
ASIN | B085RDT4F7 |
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LEGO Ideas Grand Piano 21323 Model Building Set - Featuring Detailed and Functional Design, Great for Adults, Collectible Home Décor Kit, Gift for Music Lovers with Motor and Power Functions
Purchase options and add-ons
Brand | LEGO |
Manufacturer Minimum Age (MONTHS) | 216 |
Material | Plastic |
Colour | Multicolor |
Educational objective | Creative Thinking |
Number of pieces | 3662 |
Theme | Action |
Special feature | Battery Operated |
Model name | Grand Piano 21323 |
Model year | 2021 |
About this item
- Functional Design - Large LEGO set for adults features the first-ever, 'playable' Grand Piano model with 14 songs accessible via the LEGO Powered Up app
- Powered Up - This is the first Ideas set equipped with Powered Up components; a hub, a motor, and a WeDo 2.0 Motion Sensor, a perfect creative DIY project
- Real Components - This piano has an opening fallboard, 25 separate moving keys each with its own real hammer action, moving pedal and dampers, and more
- Choose Your Song - The piano's lid can be folded/raised and propped up, with an adjustable music stand wide enough for a smartphone. Enjoy as you play the song of your choosing
- Authentic Details - Includes an opening battery access panel, removable keyboard to admire authentic functional details, a piano stool with adjustable height, and roller caster wheels on all 3 legs for easy movement
Product information
Technical Details
Additional Information
Customer Reviews |
4.8 out of 5 stars |
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鶹 Rank |
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Date First Available | Oct. 27 2020 |
Manufacturer | LEGO |
Place of Business | ENFIELD, CT, 06082 US |
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Product description
Do you have a passion for music? Do you like to relax by focusing on a fun, hands-on project in your free time? If so, this incredible LEGO Ideas Grand Piano (21323) model kit for adults to build is just the creative activity DIY for you! Feel the pride of building a sophisticated, brick-built version of a concert grand piano that you can actually play music with*! Recreate the hammer action of each piano key, the moving pedal and authentic details such as the propped-open top lid and fallboard. Turn on (batteries not included) the motor and then you are all set to play wonderful music – select 'user play' on the free LEGO Powered Up app to play the notes yourself or activate 'autoplay' and just listen. The app has 2 modes: Listen and Play, there are 10 songs to listen to and 4 to play, with 3 songs being the same. Note that all sounds, songs included, come from the app and the smartphone. Take some time out and enjoy creating a LEGO musical masterpiece, perfect as a home or office decor piece. Part of a collection of LEGO sets for adults, it makes a truly special birthday present or Christmas gift for yourself, the musician, piano player or a hobbyist in your life. *a smart device with the free LEGO Powered Up application is needed to listen to songs or play music. Measures over 8.5 in. (22.5 cm) high, 12 in. (30.5 cm) wide and 13.5 in. (35.5 cm) deep when closed. Contains 3,662 pieces.
Top Brand: LEGO
From the manufacturer

The first-ever LEGO Grand Piano!
Build your own highly sophisticated, fully articulated, LEGO brick version of a grand piano.

Create a LEGO masterpiece
Access the free LEGO Powered Up app to play a tune on this innovative, motorized piano or listen to a selection of songs.
LEGO Ideas Grand Piano
Immersive DIY project
Take time to enjoy every step of the building process!
Revel in the authentic details
Recreate the hammer action of piano keys in LEGO style.
Opening fallboard and top lid
The lid can be propped up just like on a real concert piano.
Powered Up app options
Press the keys or just listen to music via your device.
Fan-tastic booklet
Learn about this LEGO Ideas set’s fan designer and more.
Gorgeous display item
Makes a beautiful centerpiece in any home.

A fun and rewarding building challenge
This 3,662-piece set includes clear instructions for a smooth building experience and is a perfect gift for music-lovers.
Important information
Safety Information
No
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Customer reviews
Customers say
Customers like the quality, enjoyment, and realism of the toy building block. They mention it's a good product and a nice challenging model for grown-ups. Customers also appreciate the glow that looks like a real piano in miniature.
AI Generated from the text of customer reviews
Customers are satisfied with the quality of the toy building blocks. They mention it's a good product and works quite well.
"A nice challenging model for grown ups. Lots o fun to build and a satisfying result" Read more
"Bag number 3 is missing, I couldn't start or unpack it, seems very good, but my box was unfortunately not complete...." Read more
"Good product and delivery..." Read more
Customers find the product enjoyable to build. They mention it's an excellent pastime and a nice challenging model for grown-ups.
"A nice challenging model for grown ups. Lots o fun to build and a satisfying result" Read more
Customers like the realism of the toy building block. They mention it has a glow and looks like a real piano in miniature. They also say it's fun to play songs.
"...Absolutely stunning. The piano keyboard even has a glow which looks like real!" Read more
Reviews with images

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Top reviews from Canada
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Reviewed in Canada on July 6, 2022
5.0 out of 5 stars Excellent passe-temps , bien fait et amusant à construire. Fonctionne assez bien.
Verified PurchaseExcellent passe-temps , bien fait et amusant à construire. Fonctionne assez bien.
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Reviewed in Canada on August 6, 2025Verified PurchaseRessemble à un vrai piano en version miniature! C’est vraiment amusant de faire jouer des chansons.
- Reviewed in Canada on March 12, 2021Verified PurchaseA nice challenging model for grown ups. Lots o fun to build and a satisfying result
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Reviewed in Canada on July 1, 2022Verified PurchaseSuppert le fun a assembler mais dommage qu il manquais une piece. Mais sa reste quand meme un beau piano.
- Reviewed in Canada on May 4, 2021Verified PurchaseFast delivery and great wrapping
- Reviewed in Canada on July 21, 2021Verified PurchaseA gift for my mom’s July birthday cuz she is a crazy Lego fan!!!!! Absolutely stunning. The piano keyboard even has a glow which looks like real!
A gift for my mom’s July birthday cuz she is a crazy Lego fan!!!!! Absolutely stunning. The piano keyboard even has a glow which looks like real!
Images in this review
- Reviewed in Canada on September 3, 2021Verified PurchaseIt is a perfect gift But I had to return it as I was not going to meet the person again. Sad
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Reviewed in Canada on December 18, 2021Verified PurchaseUn peu cher pour des legos. Quand même un beau produit de qualité.
Top reviews from other countries
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ElianneReviewed in Mexico on March 12, 2023
5.0 out of 5 stars Entretenido
Verified PurchaseArmar este set fue increíble cada detalle y funciona perfecto con la app, no lo piensen, comprendo, vale la pena!!!
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Natasha SouzaReviewed in Brazil on March 6, 2023
5.0 out of 5 stars O set mais incrível que montei!
Verified PurchaseSou fã e colecionadora de Lego e há bastante tempo queria incluir esse piano na minha coleção. Aproveitei um ótimo desconto do site e adquiri essa peça incrível! O sistema eletrônico e comunicação com o app por bluetooth deixam a experiência ainda mais encantadora. Valeu muito o investimento!
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Manco sylvaineReviewed in Germany on July 6, 2024
5.0 out of 5 stars Grand piano
Verified PurchaseThe media could not be loaded.
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RodrigoReviewed in Brazil on May 11, 2022
5.0 out of 5 stars Lego é Lego!
Verified PurchaseLego é sempre Lego. Alguns detalhes poderiam ser melhores…. Mas é uma obra de arte ainda