Google became famous for Knowledge Graphs over recent years, bringing together all tine information on the public internet about people, places, ideas and so on.
This is actually semantic indexing. It has been around for a long time. It is rather useful because 'machines' can assemble relevant information, and give a human reader insights they did not notice before. Those machines start to seem rather 'clever' when really they are simply processing enormous amounts of information in a structured manner.
We have Knowledge Graphs of Musicians, Artists, performers, composers and so on. Look at this huge range from Orlando Gibbons to Adele:
So enjoy the thrill of finding relationships between Artists who worked together. It gets better and better as our project with a computer science department at a major university extends its findings.