Per Richard Moon, develop of TUNEdb, posted to the Woodenflute list on Nov. 10:
TUNEdb is down at the moment. As you may know it’s kindly hosted for free by Larry Ownes (sic) who also runs the list and woodenflute.com. Since a recent upgrade something has broken in the connection between TUNEdb and its database. I haven’t had any time to resolve the problem and I may not for a while.