"Studio three was the smallest. The Beatles regularly used it, and we know they recorded certain songs there using the piano.
"It was also used by other bands, including Pink Floyd, and without its association with the studios it would be worth a very modest sum. It is a bit battered and is covered in stains and cigarette burns. It has been used and abused – but that gives it character.
"It still plays although it would perhaps benefit from a professional tuner having a listen."