Jean Jude, glasses perched on the end of his nose, is practicing scales when his visitor arrives.

"Sorry there isn't much room in here," Jude says, getting up from one piano before wending his way among countless others filling his living room, part of a unique collection totaling around 150.

Jude and his cat live among the pianos in a four-bedroom house at the end of a cul-de-sac in Saint Pierre des Corps, a suburb of the central French city of Tours.