I can't imagine that this hasn't been suggested yet, but considering that special/limited/deluxe/super-mega-ultra-rainbow-shitting-turbine-jet-unicorn editions for albums exist with different track listings, why not have multiple tracklistings for each separated by tabs in a given album page? It'd be more reliable than using the additional notes, since a lot of submitters neglect to put that information in there sometimes.

This has been planned for a long time now, but there's no ETA yet. Be patient.

Coming soon.

Oh, okay. Thanks.