Gustav Bertha plays piano and sings. His recordings don't always sound like this. They sound like he might have a full band. He doesn't. This is just trickery and lies! When he plays live, it sounds like he plays piano and sings. P.robably because that is what he does. Although sometimes it's not a real piano. So, it's still just trickery and lies. His lyrics are meant to be funny, but they aren't always funny