Many years ago I bought an LP of Irish fiddle music played by a guy named Dinty McLaughlin (or something like that). Not only did he play the fiddle but he was step dancing while he did so! The resulting noise was truly unbelievable. If that wasn't bad enough, the track grooves on the LP weren't concentric with the hole in the middle of the disk so the pitch of the aforementioned noise went up and down as the record revolved. It's so bad it really makes you laugh.