https://www.lego.com/en-us/product/grand-piano-21323?CMP=EMC-VIP-20200723EXCGRANDPIANOANNOUNCEMENT_Variant_A_10019 

> LEGO Ideas Grand Piano model kit (21323)
> To power up the grand piano's self-playing function, you'll need
> 6 AAA batteries (not included) and the free LEGO Powered Up app --
> choose 'user play' to play the notes yourself or auto play to
> listen to 1 of 4 songs.

Dean Hamilton