Comparing frequency of word use across Shakespeare's plays?
There are numerous concordances that list all of the words, and their frequency of use within each of Shakespeare's plays. However, I am interested in the presence and frequency of use of words *across* those plays.
For example, I would like to compare the frequency of the term *beauty* in "Hamlet" with its use in "The Tempest."
While this can be done manually by looking up the instance in the separate concordances of each of the plays, is there a project or program that does this for all of the plays (or some subset of them)?