Custom Form per Content Type

There are couple of custom content types under a content type group. These content types are added to a SP Library. The ribbon in the library lets user select a content type in the library.

The requirement is to associate each content type with a edit form so that when user selects the content type in the ribbon, the related edit form is displayed to enter meta data which will be saved to the library later on. So can a application page be associated to a content type? Each content type will have its own edit form(in this case an Application page)

Basically the idea is to have a edit form per content type to save the meta-data regardless of the library/list