Reharmonisation, whether simple or complex, plays a major role in the creation of contemporary Big Band jazz compositions and arrangements. This can range from gentle shifts in tonality to complex total reharmonisations. Examples can be found in my own works on-line here.
You will have gained significant insight into reharmonisation from the exercises under Planning and Creating an Arrangement. Learn how to take your sketches and make them more interesting through the application of reharmonisation. The tutor will be available during your session for further discussion on such advanced techniques by arrangement.