In Inn Keeper, you will be able to play music with instruments! You will be able to play music from scratch (music note by music note) or, in a future update, create and import your own music as a "soundboard". You are also able to choose the octave in which you want to play.
Depending on the level of difficulty selected, playing music will impact your reputation according to the musical tastes of the customers of your establishment. It is the same for the different bards you will hire and who will play music for you.
We don't have an exhaustive list of all the instruments that will be available because we are adding them as we go along, but here is a demonstration of the first one we have implemented: the lute.