Art criticism<span> is the discussion or evaluation of visual art.</span>[1][2][3] Art critics<span> usually criticise art in the context of </span>aesthetics<span> or the theory of beauty.</span>[2][3]<span> A goal of art criticism is the pursuit of a rational basis for art appreciation</span>[1][2][3]<span> but it is questionable whether such criticism can transcend prevailing socio-political circumstances</span>
It adds half of the notes value, so if it was a dotted quarter note then it is basically a quarter note tied to an eighth note.
Analogy but to get more into detail This is a simile - a comparison involving "like" or "as".