Well, it's not a terrible song, but I think there some things that can be improved upon.
For people who actually know what the song is referring to, or are in "the know" related to Bitcoin, it's a pretty accurate (and somewhat entertaining) song.
I think that the concept is great. Will there be more of these? I want to see the progress as this rapper makes more music.
Maybe you should make a Bitcoin sing if you think this is bad. I actually really like the song. It is quite catchy and has a nice rhythm.