[Trexmaster]

The cushion in front of the piano in the graveyard manor doesn't seem to have an actual seat on it, so your positioning is a bit awkward and not centered.

Could there be a seat made so characters are centered on the cushion?

EDIT: See below, any Piano like this (Ice Palace, Meiaquar Inn, one of the Don's houses?, etc) have seats that aren't actually proper seats that center your character onto it.

[Senna]

It applies to all piano seats.

[Neus]

Not really a bug but I went ahead and made it spawn an invisible seat.