This is a neural network (an AI) that is trained on all of the #spc tags of music hosted on SMWC, and can generate new ones based on it.
"Epoch" is how long the AI has trained for — the higher the epoch, the more realistic and predictable the output.
Epoch 1 is when training just began so the text it generates is almost random. Later, it learned to pick up on the patterns in SPC tags and reproduce them rather well.
These are not generated on the fly, but chosen at random from a huge list of pre-generated output.
If you
find a Very Bad Word in here it's not my fault but I can remove it.