A fakebook is a musicians resource. Paper fakebooks consists of simple melody lines in standard notation with guitar chords. Fakebooks give musicians access to a larger repertoire of tunes than they can memorize. This site goes one step farther. You can hear the tune and play along.
Learning new tunes is easier and the MIDI provide a ready practice resource. If you use a program like Notation Musician (recommended), you can adjust tempo, mute voices, change key and print sheet music directly from the tunes on this site.