A few quick notes:

 

The upright piano in Dungeon practice room LL-12 is open to all Harnwell residents, either by reservation through this website or first-come, first-served at the Info Center.

 

To be added for access to the grand piano in the Dungeon practice room LL-13 (as well as the upright piano in the Classroom M-10) please follow the instructions on the House Office page of this website (under the Operations tab select House Office). 

 

If the key to any piano room is checked out through the Info Center without a reservation there is a 2-hour time limit.  After a 15-minute pause where the key is returned to the Info Center the key may be checked out again if more time is needed and another person does not wish to use the space.