For most of the history of art, the recognizable or at least reflects some sort of visual experience.

For most of the history of art, the SUBJECT is recognisable or at least reflects some sort of visual experience. Artists work with types of subjects that are reffered to as GENRES which among other things, include genre subjects which are images and themes which are experienced in ordinary life.

It depends on what type of third separates the three notes.for example: if you have two mayor thirds is an "aumented chord"if you have two minor thirds is an "diminued chord"if you have one mayor first and then one minor is a "mayor chord"and inverted is a "minor chord"