Help me clarify, is there a difference between 'forward' and 'bright'?

The word "forward" and "bright" could mean a lot different to different listeners.  Being forward can actually a good thing if implemented properly.  If not it can sound too forward and hollow.  Implemented correctly, it can have a soundstage slightly into the room which many people actually prefer.

As for bright it has to be considered with context.  Too much treble energy can result in excess sibilance.  But if done correctly, it just that the treble is more extended and not rolled off.

Bad "forward" or "bright" can be measured in term of distorion.

forward is more of a sound stage presence, bright is a lack of tonal balance/prevailing highs - relative for the given music.

Parkergetdean, That makes sense to me, yes.

so a small bookshelf then can sound bright, that is have a 'lack of tonal balance/prevailing highs' even without excess treble energy in a frequency chart just due to the fact there is no low bass from say a small box, think NHT Absolute Zero or many other similar examples, correct?

yes, a small bookshelf may sound bright, but it's not evident. I would say small bookshelf (which I like) speakers are lacking the fullness and full range sound because they can't round up the bottom frequencies. But usually their midrange is decent. If you were to add a sub, you may balance out the brightness. Not a magic wand but it should work.