Separating Model into pieces?

I have a model I have imported from the web. It is a grand piano. It is all one piece. Is there a way to access pieces of the model separately? For instance is there a way to select just the lid on the piano as an object and not select anything else? Or just certain keys?

Select the vertices you want to separate and press P. Depending on how the model was originally made selecting all vertices and P, separate by lose parts may split it into discreet parts

Yes, that works! Thanks very much!