Does the piano actually work?

A hand crank moves the keys and hammers, and an optional app can play notes through the built-in motor.

Does the set include minifigures?

No, this is a furniture and mechanism model with no minifigures included.

How difficult is the build?

It is a demanding build, since the internal mechanism and the many fine casing panels both require careful, precise assembly.

LEGO Ideas and CUUSOO

Grand Piano

The Grand Piano recreates a concert piano in 3,662 pieces, built around a working hand-crank mechanism that moves the hammers and keys. As a LEGO Ideas set, the concept began as a fan submission, which shows in several unusual building techniques throughout the model. This page lists every part used, broken down by colour.

Set number: 21323
Year: 2020
Pieces: 3,662
Minifigures: 0
Theme: LEGO Ideas and CUUSOO
Different parts: 346

What can I build with it?

View the official building instructions at LEGO® ↗

Parts list 346

As BrickLink list (XML)

Import on BrickLink: Wanted → Upload, upload the file (or paste its content), pick a Wanted List and add the parts.

Spare parts (21)

These extra parts come with the set in case one gets lost.

Alternative models

Fan models by Rebrickable users that you can build (mostly) from this set’s parts. Instructions are available from the designers.

Classic Sailing Ship 2,582 pieces by Bricks of Lofoten

View the idea at Rebrickable ↗

What can I build with it?

Description

Mechanism first, furniture second

Unlike most LEGO sets, the Grand Piano contains genuine working parts: a hand crank on the side drives a gear system that moves the keys, and a small motor can even play notes through a companion smartphone app. The build splits clearly into two stages, with the internal mechanism assembled first and the glossy, piano-black casing added afterwards. That mix of mechanical engineering and classic furniture design makes it one of the more unusual sets in the LEGO Ideas range.

Black and tan for a lacquered finish

Black dominates the casing, recreating the glossy lacquered finish of a real concert piano, while tan and dark tan represent the wooden frame and legs beneath it. White accents mark the keys, giving the classic contrast between a dark case and a pale keyboard. The parts list on this page shows how these colours are distributed across the 346 distinct part types, from large casing panels down to the tiny key elements.

A display piece, not a playset

The Grand Piano ships without minifigures, keeping the focus on the instrument itself, complete with a lid that opens and a keyboard cover that slides shut. With 346 distinct part types among 3,662 pieces, the emphasis sits on fine, often unique shapes rather than the repeated large sections typical of bigger display sets. Once finished, the model genuinely functions like a small music-box mechanism and makes for an unusual centrepiece on a shelf or desk.

Parts suited to furniture and detail builds

The fine casing panels, hinges and key elements from the Grand Piano work well in other furniture or interior-themed builds once the set is finished. The parts list on this page makes it easy to check exactly which shapes and colours are included, useful for reordering a specific piece for a separate detail project. Opening the case also reveals just how much engineering sits behind the piano's outwardly simple, elegant shape, especially around the crank mechanism.

FAQ

Does the piano actually work?: A hand crank moves the keys and hammers, and an optional app can play notes through the built-in motor.
Does the set include minifigures?: No, this is a furniture and mechanism model with no minifigures included.
How difficult is the build?: It is a demanding build, since the internal mechanism and the many fine casing panels both require careful, precise assembly.

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