Upright piano

An upright piano comprising:

• a right side-board and a left side-board;
• a front panel provided in an area, on a side near a player, between the right side-board and the left side-board;
• a back panel provided in an area, on a side far from the player, between the right side-board and the left side-board;
• a top board located over the right side-board, the left side-board, the front panel, and the back panel and configured to be shifted between a closed position and an open position, the closed position being a position in which a top of an internal space formed by the right side-board, the left side-board, the front panel, and the back panel is closed, the open position being a position in which the top of the internal space is opened;
• and
• a top-board support mechanism configured to support the top board located in the open position;
• the top-board support mechanism including:
• a rotation shaft fixed to the right side-board or to the left side-board;
• a support member having an elongated shape and including a first end and a second end, the support member including a shaft insertion hole arranged closer to the second end than to the first end, the support member being pivotally supported to be rotatable by the rotation shaft inserted through the shaft insertion hole;
• and
• a positioning portion fixed to the right side-board or to the left side-board within a rotation range of the support member and configured to restrict the rotation range of the support member by being in contact with the support member,
• the support member being configured to rotate from a first contact position to a second contact position,
• the support member including:
• a first contact portion being in contact with the positioning portion when the support member is located in the first contact position;
• and
• a second contact portion being in contact with the positioning portion when the support member is located in the second contact position,
• the support member being configured such that, in response to being located in the first contact position, the first end comes into contact with the top board located in the open position, thus supporting the top board, and
• the support member being configured, in response to being located in the second contact position, to be positioned below respective upper ends of the right side-board and the left side-board.