City of Gosnells Mayor Dave Griffiths said the impressive German-made Ronisch 3 Crown was owned by local Emily Stidwell in the 1940s and remained in the family until around 1995, when it was donated to the museum.
He said it was a valuable piece that the City wanted kept in top order with Sunday sessions.
Mrs Stidwell’s daughter Bettina Jackson said the piano was a prized part of her family’s front room.
‘Mum would play it each night after tea and the family would go to sleep to the sounds of Rustle of Spring and other classical pieces,’ she said. ‘Neighbours came in for a sing-song round the piano on Saturday nights and our Uncle Phil, when he stayed with us, would play it for hours.’
Her sister Joan King paid for the $3300 restoration.
Prospective players can call 9490 1575 or visit the museum.