Doorn,
It is possible to view the lyrics in the KN screen -- and you can connect to a TV and monitor what you see in the KN screen.

If you have a laptop:
1-You can play your midi files using a free download program, VanBasco.
2-The audio output from your laptop goes into the in line impute of the keyboard, giving you control of the volume from the keyboard.
3-The VanBasco program give you control of:
A-Tempo, you can select the tempo for the song being played.
B-Pitch, you can select the key the song is played in.
C-Volume, you can control the volume of the song so that all your midi files are close to the same level.
D-You can create many play lists. (Selected songs)
E-You view the lyrics in the laptop screen. If you double click the screen the lyrics fill the screen – double click and your back to the VanBasco display.

And – The VanBasco program will remember all you have done.
I find playing the midi files with the laptop is friendly. Although you can play midi files in the KN keyboard it is far more involved with limitations.

John C.