Well, I'm not aware that any "bright and happy" Country & Western songs have ever been written, and they all seem to be harmonized with nothing beyond three major chords :)
More seriously, the history of European/western music is very well documented for the last 1000 years, and within that time frame - insignificantly short in the context of biological evolution - there have been huge cultural shifts in the "meaning" of musical constructs. Go back 1000 years, and both major and minor thirds were considered to be discords that were hardly ever used in any musical context.
You might also consider western/European ethnic instruments. For example the Highland bagpipes have a range of just 9 notes approximating to a major scale (the tuning of the scale is actually unique to that instrument, but the important point here is that there are no "chromatic" notes at all in the traditional playing style) and they were (and still are) used to play lively dance music, laments for dead heroes, and everything in between.
Outside of western and European music, the ground rules are completely different. Consider Indian "classical" music, or even Bollywood film scores, for example.