On Saturday nights, I like to listen to Jazz. The following 30 minute video is called "smooth jazz". It's made up of songs that I've never heard before and that nobody will likely ever know the names of. A lot of it is created on synthesizers but sounds really good because today's synths reproduce many instruments digitally and accurately. I first started listening to jazz like this in the 1980s created by a group that called themselves Spyrogyra.