Previously known as "Melodyhound", Musipedia is an open music encyclopedia modeled on (but not formally associated with) Wikipedia. Online (in one form or another) since 1997, Musipedia is a searchable, editable, and expandable collection of tunes, melodies, and musical themes. Essentially, every entry can by edited by any concerned visitors, and entries can contain pieces of sheet music, a MIDI file, and text that describes the work and its composer. Visitors can also whistle or sing a melody through their computer's microphone in order that they might search the site and find out more about that individual song or melody. The current database includes over 10000 classical melodies, over 17,000 folk songs, and around 100 national anthems. Finally, the site also has two helpful discussion forums where visitors may seek the assistance of other users of the site.