Because The Artist Index (TAI) is a directory, many of the links it contains lead to sites and pages outside of theartistindex.com. These sights do not share a common navigation system with TAI. In fact, they are not even required to be linked to it.
For this reason ALL external sites ALWAYS open in a new page. Besides ensuring that a viewer is able to return to TAI quickly, this has the added advantage of allowing the viewer to have multiple pages open at once if they'd like to compare artists.
Following are TAI's navigation symbols and what they do:
HINT: Should you forget what a Navigation button does, place the cursor over the button. After about 2 seconds a tool tip should pop up.