Why is it good to listen to Moondog?
1. Because he doesn't sound like anyone else. The key to marketing is to say this sounds like that. You need to know where to slot it. But he just made Moondog music, which ranged from contemporary classical to an idiosyncratic take on jazz to the tribal and the otherworldly. If you could slot him anywhere it would be in the great America tradition of weirdo genius outsiders like Sun Ra and Harry Partch. He invented some of his own instruments, like Partch did.
2. Because he named himself for his childhood dog who would howl at the moon.
4. Because he learned drumming from Arapahoes in Wyoming in the 1920s.
5. Because he is really engaging to listen to.
Here's an outstanding article on Moondog.