How do I separate an instrument using RePAN Plugin?

RePAN separates a stereo mix into a number of different spatial bands. If the instrument you want to extract is the only source present in a given spatial band, then you can separate that instrument using RePAN. This sometimes occurs in older stereo mixes. However, in most modern mixes, there are often many instruments at a given place in the stereo field. These will also be separated with the instrument you want to separate.