Hello to All,
The new casio WK1800 will help you with learning what's being played with a midi file.
Casio's and newer Yamaha PSR series keyboards have been displaying the key bed in the LCD screen. Since the WK1800 has a disk drive and can play midi files ( not as good as Yamaha, but better then before ).The keys on the screen will help with learning the songs. It will not spell out the chords , but I have found it helpful. The Casio is selling for around $479.99. Good Luck........Dan O at Guitar Center Towson MD.
oneils4@home.com or 410 821 5200